All About Our Custom Tank Heads

Posted by Helander Team on Wed, Jan 08, 2020

At Helander, our metal spinning and sheet hydroforming processes produce a range of durable tank head imageand high-quality metal parts. Tank heads especially are a perfect fit for our metal forming processes. We produce our tank heads in a number of dimensions and shapes, depending on each client’s specific needs. This blog will discuss how Helander makes tank heads and the advantages of using custom-made options instead of choosing stock tank heads.

Customizing Tank Heads: Metal Spinning and Sheet Hydroforming

Metal spinning and hydroforming are both efficient, fast, and precise processes—all of which are qualities that produce top-of-the-line tank heads.

Metal Spinning

Metal spinning is a metalworking process that creates high-performance, axially symmetrical parts. The process transforms a metal disc or tube by rotating it and forming it to a mandrel, clamping it to a lathe, and producing a round shape. Some of the advantages of metal spinning include:

  • Lower costs to alternative forming methods
  • Shorter lead times, with the components available within weeks instead of months
  • Maximum design flexibility, as they can easily be changed to work with evolving product designs
  • Seamless, high-quality construction that produces durable and smooth objects without seams or welds

Metals that are compatible with metal spinning include:

Hydroforming

Hydroforming is a fast and efficient process that produces structurally strong components with minimal material waste. It is a reasonably priced technique that is the preferred method for shaping intricate components from ductile metals. The advantages of hydroforming include:

  • Reduced overall time and costs of designing and creating the mold due to the use of a single form surface tool
  • Easy access to resources, as the force that shapes the steel uses water, which is widely available and cost-effective
  • Fast changes to the design of the mold, such as a few days, since the process requires just the single tooling

Compatible metals for hydroforming include:

  • Steel
  • Stainless steel
  • Copper
  • Brass
  • Aluminum

At Helander, we implement advanced sheet hydroforming techniques and tools to produce tank heads that require a diameter of up to 20” with a depth of up to 10”. Our team produces tank heads of up to 100” in diameter for larger projects. These tank heads have a metal thickness of 2” for aluminum, 0.375” for steel, and 0.250” for stainless steel. We can produce sturdy and durable tank heads in many shapes, including elliptical, curved, and circular.

Custom vs. Stock Tank Heads

You can buy stock, off-the-shelf tank heads in bulk, but many businesses have a specific and custom design and model in mind which proposes a need for custom, specialty tank heads. The most notable advantage of custom tank heads is the certainty that it will fit. Using exact measurements for the tank head, there is a perfect fit every time, which decreases the back-and-forth time and energy that is spent acquiring stock tank heads.

At Helander, we offer custom tank head production per customer design and specification. That being said, we do not keep stock of tank heads because our tank heads are all custom made.

Contact Us for Custom Tank Heads

Helander has more than 80 years of experience in producing custom metal parts, and we provide our metal forming services to everyone from small businesses to Fortune 500 companies. We ensure customer satisfaction through quality, on-time delivery, customer service, and ethical behavior, and we comply with all customer and regulatory requirements.

We are a custom manufacturer of tank heads with certifications, including ISO 9001:2015, AS9100 Rev. D, and ASME Section 8, Div. 1. We are proud to produce custom tank heads that meet the highest industry standards and exceed our customers’ expectations.  To learn more about the custom tank heads and capabilities at Helander, contact us today.

Tags: Metal Spinning, hydroforming, Custom Metal Spinning, custom tank heads, sheet hydroforming, metal spinning components

Advantages of Hydroforming for Aerospace Applications

Posted by Helander Team on Tue, Nov 19, 2019

Hydroforming is frequently and advantageously applied within the aerospace industry. The typically high complexity of aerospace components necessitates a fabrication technique that canaerospace-cap-edited-500x477 effectively produce the desired shapes and forms. Metal sheet hydroforming provides an economical manufacturing solution for parts with asymmetrical or complex geometries and irregular contours as the process requires fewer passes to produce the desired part than a comparable matched die stamping process.

Hydroforming is suitable for limited production runs of metal parts with irregular contours that cannot be formed by stamping. Additionally, unlike metal spinning, hydroforming allows fabricators to process extremely thin metal sheets and maintain original metal finishes.

Virtually all metals that can be cold formed can undergo the hydroforming process, including:

  • Aluminum
  • Nickel
  • Copper
  • Stainless steel
  • Carbon
  • High-strength, high-temperature alloys

In addition to the wide range of suitable materials, hydroforming offers a number of unique advantages for the aerospace industry. The following blog post will provide an overview of these advantages.

Unlimited Geometric Possibilities

(click to expand)

Advantages of Hydroforming for Aerospace Applications

As opposed to matched die stamping which requires mated male and female dies, the only tooling that sheet hydroforming requires is a punch (to serve as the male die) and a ring (to hold the blank in place). A rubber diaphragm and pressurized forming chamber function as the female die component. As the urethane bladder does not have a distinct, solid shape, it can take on the shape of any conceivable geometry. This quality allows for the formation of more complex forms with concavities that would be difficult, if not impossible, to produce using standard solid die stamping.

Compared to conventional stamping techniques, hydroforming enables fabricators to form difficult shapes and irregular features within a single press cycle. This process characteristic reduces the number of forming operations required. Additionally, as hydroformed parts can be produced to net shape or near-net shape, a single hydroformed component is often able to replace multiple parts, resulting in assemblies with fewer parts, higher strength, and lower costs.

Combined, these process qualities make sheet hydroforming an ideal manufacturing solution for shorter press runs of uniquely shaped parts used in aerospace applications.

Superior Surface Finishes

In addition to its virtually infinite geometric possibilities, hydroforming also produces parts and products with superior consistency, strength, and surface finishes.

  • Superior consistency. Compared to deep draw stamping operations, the uniform application of pressure during sheet hydroforming operations creates less friction, reducing the amount of strain and stretching experienced by the material and, ultimately, increasing its drawability. These qualities facilitate more consistent and even wall thickness formation.
  • Superior strength. Less strain on the workpiece material also leads to parts with greater structural integrity. This quality allows fabricators to produce more lightweight and thinner parts with the same performance parameters as a stamped alternative, which reduces material and manufacturing costs.
  • Superior surface finishes. Due to the decreased friction and absence of rigid tool contact, sheet hydroforming creates blemish-free formed parts with smooth surface finishes that do not require additional finishing operations, such as polishing or buffing. Process capabilities for precision fabrication ofcontoured and flat surfaces and utilization of exotic materials also reduce the number of surface imperfections requiring further finishing. By minimizing the amount of finishing operations required, the hydroforming process decreases the total cost of production.

The above advantages lead to hydroforming being the manufacturing technique of choice for critical aerospace parts and components that require superior surface finishes.

 

Economical, Streamlined Prototyping

Hydroforming provides a quick, low-cost prototyping solution. Compared to the tooling used in similar manufacturing processes, hydroforming tooling can be up to 90% less expensive.

At Helander, we use a state-of-the-art 20-inch hydroforming press for our aerospace prototyping projects. We can produce parts with diameters between 1–30 inches and part thickness ranging from 0.030–0.250 inches to ±.003 inches tolerances.

During the design phase, our engineers use CAD and CAM technology to produce prototype models for our client’s products. At any stage of the production process, clients can provide notes or observations for design revisions. Our team can also offer recommendations for part improvements if the client needs a more aesthetic or resilient product.

Our hydroforming capabilities, combined with our commitment to maintaining open client communication, results in superior quality metal components for precise aerospace application needs. For more information about our aerospace-specific capabilities and services, contact us today.

Contact Helander Today

Hydroforming provides several advantages in the manufacture of aerospace parts and components, including greater geometric possibilities, superior surface finishes, and more economical, streamlined operations.

For over 80 years, Helander has offered industry-leading metalworking services. Our hydroforming capabilities enable us to meet our clients’ needs and the stringent manufacturing, engineering, and precision requirements of the aerospace industry. To learn more about our hydroforming services and capabilities for aerospace applications, contact us today.

Tags: Metal Spinning, hydroforming, Custom Metal Spinning, sheet hydroforming, metal spinning components

Meet our Machines | 20" Hydroforming Press

Posted by Samuel Ibrahim, Jr. on Thu, Oct 09, 2014

At the heart of Helander’s hydroforming services is our cutting edge 20" hydroforming press. Sheet hydroforming is an ideal process for manufacturing parts with complex or asymmetrical geometries that would require multiple punch cycles in a matched die stamping process. By replacing one of the rigid dies with highly pressurized hydraulic fluid contained in a flexible diaphragm, its dynamics allow it to take on the form of any conceivable geometry. We use it to create an almost unlimited range of geometric shapes, either shallow or deep drawn, from a wide variety of metals and metal alloys.

Designed by engineering and manufacturing professionals with decades of experience in the machine tool industry, this hydroforming press sets the industry standard in hydroforming technology. Their pioneering pressure containment system offers a significantly reduced press size and operates with outstanding integrity and durability. Modern design software, state-of-the-art hydraulics, and computer-driven controls provide us with the capability to produce seamless parts that are extremely lightweight, strong, and durable.
20inch Hydroform

This flexiblepress is fully programmable can be used interchangeably in the deep draw or fluid cell process mode. For deep drawn parts or those with curved geometries, the downward-acting bladder holds the material during pressurization as the tool is extended upward by a hydraulic punch cylinder. This draws the material into the bladder and allows it to flow as needed. By contrast, the fluid cell process allows the downward pressure of the bladder to form the material around the tool, allowing multiple parts to be run in a single cycle. 


Operating at up to 10,000 psi, this hydroform features and advanced control and hydraulic systems that allows us to precisely manage the forming pressure of punch travel, which facilitates the production of net-shaped parts. Its "open" feature enables our operators to visually inspect parts mid-cycle, after which they can either continue the cycle or abort in order to modify the recipe – a significant time saver in new part development projects.

Maximum punch tool diameter is 15", while draw depth capacity is 10". Outfitted with components from well-known names in industrial automation, it gives us the capability to for an extensive PM program.

This exceptional press provides us with a high-reliability solution for production of complex shapes for tight tolerance parts that need little to no finish work. Single tool technology dramatically lowers tooling costs, and process flexibility makes it an excellent choice for prototype and new product development projects. Our operators have a solid understanding of the hydroforming process as well as the technical skills to take advantage of the high-performance features this press has to offer, and we pass those benefits onto you.

Helander’s future plans are to expand our department with larger machinery to 32” hydroforming press and 1” thick spinning capacity. If you would like to be part of our plans, please contact us at spin@helandermetal.com

Download our eBook: Hydroforming Magnetic / Rotary Pumps

 

Tags: hydroforming, hydroforming illinois, sheet hydroforming

Need a float? We have you covered.

Posted by Samuel Ibrahim, Jr. on Thu, Jun 05, 2014

 

Float

Float Ball 316 SS 14" Diameter

Did you know that Helander Company can fabricate the metal float for your application?

We employ a combination of superior hydroforming, metal spinning, welding, and machining processes to fabricate floats in a variety of materials for a myriad of different industries.

These floats are  primarily used in level and flow measurement instrumentation, allowing for accurate reading while emptying or filling a tank, vessel, or well; or for monitoring liquid flow through a heating, air conditioning, or processing installation. We've even worked on floats that are responsible for managing the liquid levels in the tank of  hydro excavation trucks!

Hydroforming and metal spinning are ideal for these applications because they:

  • Allow for a completely customizable shape and size
  • Can work with a variety of metals including titanium, copper, and stainless steel
  • Have relatively low setup and tooling costs

Want to learn more about our float capabilities? Contact us today.

Tags: hydroforming, manufacturing, stainless steel, metal float

Minimizing Secondary Finishing Operations With Hydroforming

Posted by Samuel Ibrahim, Jr. on Mon, Mar 31, 2014

hydroform13 large resized 600When considering the numerous options available for working with metal, many companies choose the beneficial and cost effective process hydroforming.  Originally developed around 1950, hydroforming is ideal for shaping many types of ductile metals, including brass, aluminum, stainless and low alloy steels.  It holds a number of benefits when compared to similar work processes, especially when considering cost, precision, and efficient operation.  One area where hydroforming especially excels is its role in minimizing secondary finishing operations.

A Range of Benefits

Hydroforming is a technique that employs high pressure hydraulic fluid to press materials into a die at room temperature.  It was originally developed as an alternative to stamping for small quantities of parts.  Since then, hydroforming has become a major industrial practice.  The process offers numerous benefits over other similar machining methods.

 

  • Lower Costs.  A number of factors contribute to the cost reduction provided by hydroforming, including the area of tooling.  Processes such as stamping require a great deal of tooling.  A male die and a blank holding ring are essentially the only tools that are needed in hydroforming, since a pressurized forming chamber acts as the female die.  This results in an average 50% savings when compared to processes like deep draw stamping.  Hydroforming also features lower cost materials and reduced set up times, with easily mounted and aligned hydroforming tools.  It provides significant savings in product development.  Different material types and wall thickness specifications can be accommodated while manufacturing prototypes using hydroforming techniques.

 

  • High Quality Parts.  The hydroforming process is capable of creating high quality, precision components and parts.  Extremely tight tolerances are possible, including aircraft tolerances that are commonly ±0.03”.  The sheet hydroforming process is also capable of producing highly complex shapes in a single operation.  There is nearly no limit to the geometries that can be produced using this method, and the components produced are of consistently high quality.  Hydroforming creates quality results while accommodating materials of all different types.  In addition to commonly used ductile metals, hydroforming techniques can effectively shape copper and precious metals like gold.  Finally, hydroforming creates materials with reduced work hardening, maintaining material tensile strength for long periods of time.

 

  • High Efficiency.  Setup and handling processes are faster and easier with hydroforming.  Because of the simplified configuration of the process, tool change times are far faster than other traditional metal forming processes, often reducing change times by up to 70%.  Lead times for tooling are also reduced due to simpler tooling; the multiple processes required by traditional tooling are consolidated to one machine.  Parts and components that require many different operations can often be fabricated in just one cycle using hydroforming.  This process is simple to run and requires a low amount of skilled labor, saving high labor expenses.  Accurate results can be achieved with very low excess scrap, with the additional machining required to finish components often eliminated entirely.

 

Secondary Finishing Minimized or Eliminated

A great deal of time and expense can be devoted to secondary finishing operations.  Traditional machining methods are apt to leave marks from matched dies and other sources.  The additional labor costs can also be significant.  Hydroforming creates strong, attractive, and high quality shapes that require minimal secondary finishing.

Stamping, a metalworking process using a press to shape sheets of metal, tends to leave scratches on the part.  These scratches and other surface imperfections require polishing or surface refinement to repair.  Hydroforming eliminates the need for these by producing smooth parts the first time around.  Processes such as matched die forming also leave many residual marks on the shaped part.  Shock lines, draw marks, wrinkling, and tearing may occur.  Hydroforming is unique in shaping metals without these types of scuff marks.

How does hydroforming avoid the marring on finished products that occurs with so many other traditional machining processes?  The answer is in hydraulic fluids that shape the metal and the soft, flexible diaphragm.  Most hydroforming processes use a rubber diaphragm that acts as the common female die.  The outside surfaces of the hydroformed parts do not experience metal to metal contact.  This helps to virtually eliminate the scratching and scuffing that occur with conventional tools

Secondary operations to correct the flaws listed above can include a wide variety of machining processes.  In addition to polishing and buffing, CNC and laser machining may be needed.  Hydroforming prevents the need for these while maintaining dimensional consistency.  With options that include the use of vinyl clad material to protect polished sheet stock from being marred, the cost savings that hydroforming provides can be enormous.

A Wide Variety of Industries

The smooth surface finishes produced by hydroforming are required in a number of different areas.  Hydroforming is extensively used in the automotive sector and in the oil & gas industries.  High tolerance applications such as aerospace and medical products also count on the smooth and accurate work that this process produces. It is used in military, commercial, and alternative energy applications as well.  Commercial cookware utilizes hydroformed parts for their outstanding surface finishes, and the list goes on.  High quality and cost effective, hydroforming continues to be a method of choice for metalworking.  It not only eliminates the need for most secondary processing, but provides precise and efficient metal shaping.  It is widely known its pleasing aesthetic qualities, and also for highly accurate finishes for industries where accuracy is of the utmost importance.       

 

Tags: metal forming, hydroforming, Metal Stamping, manufacturing

The Case for Metal Spinning and Metal Hydroforming

Posted by Samuel Ibrahim, Jr. on Thu, Oct 10, 2013

Metal Spinning is a process by which a disc or tube of ductile metal is rotated on a spindle and formed into an axially symmetric part. Through the use of heavy forces and high speeds, the metal will deform and “flow” to form the desired shape around a mandrel, a kind of mold that is shaped to the interior geometry of the planned part. This process allows metal to deform evenly, without any wrinkling or warping, to create a smooth, even, and seamless surface. The processes’ heavy forces also realign and strengthen the grain structure, significantly increasing the tensile properties and fatigue resistance of the base material.

Metal Spinning offers a series of compelling benefits for prototype and specialty work. High precision tolerances are easily attained on a wide variety of metal materials and designs. Mandrels are easily manufactured using traditional lathe and mill work, and considering that they are not subjected to excessive force in normal use, may be made of nonmetal materials. CNC control, hydraulic assistance, heat for hot working, and toolholders can all be incorporated into the metal spinning process. Overall, Metal Spinning permits an unparalleled level of flexibility, speed, and efficiency without sacrificing the precision and accuracy delivered by traditional processes.

For designs that are not conducive to spinning operations, Metal Hydroforming provides similar benefits and efficiency gains, effectively replacing work performed by machining or dies. The sheet hydroforming technique replaces one of the rigid dies used in conventional stamping with highly pressurized hydraulic fluid, contained by a urethane diaphragm, to force the sheet metal into a one-sided die cavity. Since the diaphragm, which is essentially acting as the female die, has no distinct shape, its dynamics allow it to take on the shape of any conceivable geometry. Complicated shapes with concavities are now possible in a single press cycle, reducing the amount of follow-up work and required forming operations. Produced to net shape, a single hydroformed component can often replace multiple parts, resulting in assemblies with fewer parts, higher strength, and less cost.

Metal Hydroforming brings many advantages over the typical die press processes that it replaces, especially in the context of prototype and specialty work. New part designs only require replacement of the lower die, which is usually made of cheaper cast iron and not expensive tool steel. During pressure application, friction and stress on the sheetmetal is significantly diminished, resulting in more consistent stressing and increased material drawability. Supplemental finishing operations are not necessary as the material is not marred as it is in standard die operations. Simplicity, efficiency, and service life are all upgraded significantly with Metal Hydroforming.

With the combination of these two processes, a new, and far better, system for prototype and specialty work is realized. Metal Spinning and Metal Hydroforming provide a definite pathway for one-off productions, design formulation, scratchwork, and design qualification, and simultaneously provide a full replacement for expensive, time-consuming traditional methods. Furthermore, both processes may work with just about any cold formed metal, and are easily reconfigured for high production work without any sacrifice in quality. Once the prototype becomes the new product, Metal Spinning and Metal Hydroforming are flexible enough to become the manufacturing system for it.

Helander is an experienced provider of those two services, able to add Metal Spinning and Metal Hydroforming capability to your production paradigm. Helander’s engineers, manufacturing technologists, and material specialists can provide in-depth analysis of component design, advise you on the feasibility and practicality of using metal spinning or hydroforming to form your component part, and can completely manage the production thereof within their state-of-the-art manufacturing facility. Contact us today to let us help you decide what’s best for your bottom line.

 

Want to know more?
Download our latest eBook Metal Spinning and Hydroforming - The Stamping Alternative.

Metal Spinning & Hydroforming eBook

Tags: metal fabricating, metal forming, Metal Spinning, hydroforming, Custom Metal Spinning, Metal Stamping

Hydroforming and Custom Tank Heads from Helander

Posted by Samuel Ibrahim, Jr. on Mon, Feb 25, 2013

This blog has showcased our custom tank heads before, exhibiting our dedication to quality above all else in fulfilling your custom product orders. Today we’re going to be talking about them again, as a lens through which to look at one of our other manufacturing processes: hydroforming. While metal spinning is our core business and the process we use whenever we determine it to be the best match, hydroforming is ideal for custom tank head manufacturing thanks to its ability to combine product strength, concave form, and light weight.

Let’s look at each of those factors a little more closely.

Product Strength: Custom tank heads are typically responsible for keeping oil, fuel, or liquid food products secured within a tank or pressure vessel. The demands of these types of automotive/transportation applications mean that improperly formed tank heads can easily deform, crack, and bend. This makes it that much easier for them to come loose at some point down the road – and probably on the road. Lost time and lost product are the result.

Concave Form: Hydroforming uses liquid pressure to form flat metal plate into the shape of a mold, quickly, easily, and cost-efficiently producing the required rounded forms.

Light Weight: In automotive applications, weight is a critical concern for manufacturers. Every extra pound and ounce means decreased fuel efficiency, which can add up quite a bit for a fleet of trucks or trailers. Hydroforming is a great way to provide the required product strength while still keeping weight down.

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Tags: hydroforming

Success in Succession Planning

Posted by Samuel Ibrahim, Jr. on Fri, Dec 28, 2012

We’ve talked about our pride and success as a family-owned small business manufacturer. One of the major concerns in any family-owned business is succession planning – planning for the future, when one generation of family is replaced in the workplace by the next. Of course, the nature of family business is typically that older members seem to never really leave, offering their expertise and advice (whether solicited or not) long after their retirement. Done correctly, though, succession planning represents the perfect merger of the lessons instilled by the older generation, and the innovation and promise of the newer.

It certainly takes both parts of that equation to make a family-owned business work. The business acumen and work ethic of the older generation must be taught and instilled, respectively, and this cannot happen overnight. Even for a younger generation that has grown up immersed in the world of that business, practices and processes must be learned and internalized. This is not to say that that next generation brings nothing to the table, though. Far from it: they represent the company’s future in every way. Their technological aptitude and familiarity combined with innovative new perspectives and ideas on the business are invaluable, especially in a quickly changing world. Why, there are many of us at Helander who remember the days of an internet presence consisting of a single email address and no website, and a machine shop consisting of a single CNC machine.

If neither of these technologies had been embraced, we probably wouldn’t be where we are today. But the merger of expertise occurred, and here we are, ready to serve your needs.

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Tags: Metal Spinning, hydroforming, succession planning

Helander Keeps It In the Family

Posted by Samuel Ibrahim, Jr. on Mon, Nov 26, 2012

Helander Blog10Doing business with Helander Spinning, you learn pretty quickly that we are among the millions of family-owned businesses (FOBs) that keep sectors from manufacturing to retail operating smoothly. Our status as a FOB is so ingrained into our culture that you can’t help but notice it. In many ways, the history of family-owned businesses reflects the history of America, and succession through generations provides a link to the earlier days of a business, an industry, and a nation. Succession is just one part of FOB ownership, however (and one that we’ll explore further in future blogs). Other important considerations include dealing with changing industries and trends, keeping family and business separate, and managing nonfamily stakeholders.

Helander’s Dr. Siham Ibrahim talks about all of this and more in her new book, Keep It In the FamilyBy drawing on expertise not only as the CFO and part-owner of Helander, but also as a consultant with countless other FOBs, Dr. Ibrahim uses time-tested experience and methods to explain best practices of FOB operations. Whether you are a first generation owner exploring succession plans, or a second- or third-generation family member seeking to improve everyday process, you’re sure to find Keep It In the Family useful. Click here to purchase.

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Tags: Metal Spinning, hydroforming

How Metal Stampers are saving big bucks with Helander

Posted by Samuel Ibrahim, Jr. on Wed, Oct 24, 2012

At Helander, nothing makes us happier than doing great work that saves our customers money. Recently we’ve discovered a new production niche that has been bringing us tons of new and repeat customers. It seems that metal stamping facilities often face a dilemma. One of their clients might come to them requesting a short run or prototype of a new project.  For the metal stamper this can be a giant headache, because it is often cost-prohibitive for them set all their machinery up to do small jobs. If they take the risk and don’t get the big project, they are out time and a lot of money. The solution? Going to Helander for metal spinning and hydroforming services that you can’t get elsewhere.

Metal stampers come to companies like Helander because we have the ability to spin or hydroform their short run orders (usually around 1,000 pieces) at a significant savings. How significant? How does 90% less sound? Our processes allow for metal stampers from all over the world to remove the risk of low volume production from their minds.  Instead, they can go ahead, and if they land the big contract, they often will be looking at orders of a million pieces or more.

It’s a pretty sweet deal for both sides, and it’s why so many metal stampers are subcontracting metal spinners and hydroformers like Helander. So if you’re a metal stamper, what are you waiting for? Contact us today to find out how we can save you lots on your short-run projects.     

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Tags: Metal Spinning, hydroforming, Metal Stamping