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Introduction

Cold working can improve or alter the surfaces of metal products. Peening is a cold working process where the surface of the metal is blasted by shot pellets.

This induces compressive stress in the region just below the skin to compensate for the stretching of the skin. When a tensile load is applied on this residual compressed load, the net effect is a reduced amount of stress on the part. This makes the metal well suited for fatigue applications which involve cyclic loads-such as gears, crankshafts etc.

Most weldment surfaces are under tension due to shrinkage after being exposed to welding heat. Peening can reduce tensile stress by inducing compressive stress on the part. In this type of application peening is done by using hammers.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

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A white paper to assist in the evaluation of 3D scanning hardware solutions.