What Is Metal Spinning? An Overview of the Process & Benefits

Metal spinning is a complex metalworking service which is used to manufacture axially symmetric parts from round metal discs, tubes, or cylindrical blanks. In some industrial applications, metal spinning solutions are essentially utilized as a quicker, more cost-efficient alternative to metal stamping.

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Sometimes referred to as metal turning or spin forming, metal spinning services can be performed both manually and via CNC lathe. In either case, when you partner with experienced precision machine professionals at J&E Companies, spinning is a reliable and efficient method for producing complex custom metal components and prototypes.

HOW DOES METAL SPINNING OR SPIN FORMING WORK?

Metal spinning is a relatively simple process when compared to other precision metalworking services used throughout the modern machining industry. Utilizing a manual or CNC turning machine, a round or cylindrical chuck is fitted to the end of the lathe. The metal workpiece to be formed is then fitted against the chuck tool. Held firmly with a pressure pad, the workpiece is spun to the appropriate speed – in some cases approaching 2,000 rpm.

As the workpiece spins, our machinists carefully apply force using a range of specialized tools and rollers. In the case of CNC metal spinning, the tools are robotically controlled via custom CNC programming to provide higher precision, consistency, and closer tolerances. We can even form complex components and prototypes through multi-axis forming, manipulating the workpiece with multiple chucks simultaneously to achieve unique part features and geometries.

THE BENEFITS OF METAL SPINNING IN PROTOTYPE AND PRODUCTION APPLICATIONS

Efficient and Cost-Effective

Metal spinning services are often a much more cost-effective alternative to metal stamping and custom casting operations.

Rapid Turnaround Times

In addition to being more cost-efficient, spin forming is often the quickest manufacturing option for your custom components. Both setup and production times can be much speedier than conventional stamping options – especially for complex components which would require custom tool and die solutions.

Suitable for Prototype and Production – Both Low and High Volume

The speed of the process makes metal spinning ideal for many rapid prototyping applications. However, spin forming is a highly versatile process that is also perfect for full-scale production. Whether your project is for low-volume prototypes or a large-volume production run, J&E’s precision metal spinning capabilities may be the ideal solution.

THE ADVANTAGES OF J&E’S CNC AND MANUAL METAL SPINNING SERVICES

J&E offers a complete range of contract manufacturing services to accommodate your project, including custom metal spinning solutions. Our versatile machining shops in multiple locations utilize both automated CNC processes as well as manual spin forming. This flexibility combined with over half a century of manufacturing experience enables us to fulfill both small or large production orders quickly, accurately, and on time.

Forging and machining are traditional methods of producing spacecraft components like rocket combustion chambers or nozzle liners. Additive manufacturing (3D printing) is an emerging technique that promises to simplify the manufacturing process and thus captures a lot of attention for rocket nozzle and combustion chamber manufacturing.

While both techniques have their merits, a lesser-known method called “metal spinning” has emerged as a superior choice for rocket combustion chamber or rocket nozzle liners and other large, round aerospace components.

In this article, we’ll delve into the unique advantages of metal spinning and why it outshines other manufacturing methods in the demanding field of space exploration.

What are additive manufacturing and subtractive manufacturing?

Additive manufacturing (3D printing) builds objects by adding layers of material, while subtractive manufacturing (machining) shapes objects by removing material from a larger block.

Additive is for layer-by-layer creation, while subtractive is for material removal.

What is metal spinning?

Metal spinning sets itself apart by shaping solid input material metal directly to achieve the desired form, without the need for carving from solid blocks or layer-by-layer addition. Metal spinning conserves the amount of input material needed while still delivering the forged metal properties of product machined from forged stock.

Why is metal spinning a better method for spacecraft components manufacturing?

When it comes to manufacturing spacecraft components, metal spinning has proven itself to be the superior method for making large, round components like rocket nozzles and combustion chamber liners, outshining both additive and subtractive techniques.

With a long-standing history and a track record of success, metal spinning deserves recognition as a prime manufacturing process for the space market we proudly serve at AST.

Let’s look at its wide range of advantages…

8 Advantages of Metal Spinning:

There are 8 specific benefits of advanced metal spinning over other methods, when it comes to manufacturing large, round spacecraft components.

1. Strength and durability

The metal properties are comparable to forged metals. Through careful control of grain flow and grain size, the hoop strength of our parts can be improved by around 3 to 4%.

This is particularly valuable for applications where even slight improvements in strength make a significant impact.

By skillfully shaping the metal through spinning, we harness the benefits of forging, ensuring the reliability and performance required in the demanding field of space exploration.

2. Material savings

Unlike subtractive processes that involve removing excess material from a solid block, metal spinning optimizes resource utilization by directly shaping the metal to the desired shape.

This not only reduces waste but also offers cost savings while promoting sustainability—a key consideration in today’s manufacturing landscape.