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71:. The stroke of the die must be as long as the curl. Curling is often performed as part of a high production, multiple operation progressive forming.
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process used to form the edges into a hollow ring. Curling can be performed to eliminate sharp edges and increase the
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The curling die is designed to curl a material of specific thickness. Dies are generally made of hardened
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because of the amount of wear caused by the operation. Their smooth, rounded cavities are often
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near the curled end. Other parts are curled to perform their primary function, such as
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87:and polished to help curl the material uniformly.
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150:Punches and Dies: Layout, Construction and Use
118:Sheet metal forming processes and die design
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63:, should always be turned away from the
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28:The four steps to create a full curl
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20:A schematic of the curling process
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121:, Industrial Press, p. 55,
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55:In the curling operation, the
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115:Boljanovic, Vukota (2004),
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152:. Frank Arthur Stanley
144:Handbook of Die Design
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183:Fabrication (metal)
37:sheet metal forming
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168:Metal Fabrication
128:978-0-8311-3182-1
41:moment of inertia
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138:Further reading
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157:External links
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146:. Ivana Suchy.
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163:Wire Forming
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45:door hinges
103:References
81:tool steel
69:scratching
51:Operation
177:Category
91:See also
75:Tooling
33:Curling
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85:lapped
59:, or
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35:is a
123:ISBN
61:burr
65:die
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