Punching parts are thinner, more even, lighter, stronger than casting and forging parts.
To enhance the rigidity, punching can manufacture the workpiece with stiffeners, rib, ups and downs or flanging, which other difficult methods won’t do that.
Because of using precise dies, the accuracy of workpieces can access to micron order, and high repeated accuracy, conformance to specifications, can punch holes, convex platforms, etc.