Glossary
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Blank
A flat metal disc or cylinder used as the starting material for metal spinning.
Burr
A rough or sharp edge left on a spun component, typically removed during finishing.
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CNC Spinning
Metal spinning using computer numerical control (CNC) technology to automate and precisely control the spinning process.
Cone
A three-dimensional geometric shape formed through metal spinning, featuring a circular base that narrows down to a single point.
CR
Corner Radius
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Die
Also known as Tool, A metal tool is used when shaping the workpiece during the spinning process.
Dished End
Our Term for the various types of heads – often called semi-elliptical head, tori-spherical head, dished head.
Dished plate
spinning consisting of only a spherical radius
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Finishing
Post-spinning processes, such as polishing, buffing, or coating, to enhance the appearance and functionality of the component.
Flat Flanged end
Our term for a flat spinning with only 1 corner radius
Flange
The flat, often widened end of a spun component, used for attachment or mounting purposes.
Flare
The outward curving or widening of the edge or rim of a spun component.
Forming Tools
Hand-held tools or rollers used to shape the metal on the spinning lathe.
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Inside Diameter (ID)
The width or distance across a circular spun component, measured from the Inside edge to the opposite edge through its centre.
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Metal Spinning
The manufacturing process of forming a metal disk or tube into a hollow, cylindrical, or conical shape by rotating it on a lathe while using hand-held tools.
Minimum Thickness
The point in where the spinning has thinned to its lowest point
Outside Diameter (O/D)
The width or distance across a circular spun component, measured from the outside edge to the opposite edge through its centre.
Overall Height (O/A HT)
Height from the very top of the spinning to its lowest point
Quality Control
The procedures and measures in place to ensure that spun components meet specified quality standards.
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Run Back
When the material builds up during the spinning process.
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SR
Spherical Radius
Straight Flat (SF)
Flat on the side of a dished end.
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Tangent
The point at which a tool or roller contacts the surface of the spinning workpiece.
Tolerance
The acceptable range of variation in dimensions or specifications for a spun metal component.
Tool
Also known as die, A metal tool is used to shape the workpiece during the spinning process.
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Work-Hardening
The process by which the metal becomes stronger and more rigid during metal spinning due to the deformation process.