Transcription of Sheet and plate metalwork
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Sheet and plate metalwork
7 Sheet and plate metalwork When you have read this chapter, you should understand: The principles of forming Sheet metal and plate by bending The meaning of spring-back and how to compensate for it The types and uses of bending (folding) machines The principles of bending in press tools The use of press brakes and typical press brake operations The methods of calculating bend allowance The types and uses of roll-bending machines The principles of three-dimensional fl ow-forming The techniques and equipment when fl ow-forming by hand The types and use of wheeling machines The techniques and tools used when spinning Sheet metal The principles, need for, and practice of swaging The need for operation planning The manufacture of typical Sheet -metal rectangular and conical circular products Making thin Sheet -metal edges safe by wiring and folding The use of the universal Jennying machine 278 Fabrication and Welding Engineering Sheet and plate metalwork (introduction) Sheet metalwork is the manipulation of Sheet metal of
Sheet and plate metalwork 279 As the bending force is gradually increased these stresses, both tensile and com-pressive, produced in the outermost regions of the material, will eventually exceed
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