In general, the degree of use of precision stamping materials, precision stamping parts can be divided into three types: waste layout, less waste layout, no waste.
Waste layout:
Refers to the sheet metal other than the workpiece in the punching of precision stamping parts, including process waste and structural waste. All the contours of the material are punched out, and there is a process residual between the workpiece and the workpiece and between the workpiece and the strip. Because of the punching along the closed contour of the blank, the quality of the blank and the life of the die are relatively high.
Less waste layout:
The precision stamping part is cut or punched along the outline of the workpiece part, and there is a lap between the workpiece and the workpiece, and between the workpiece and the side of the strip. The blanking of this kind of arranging method is only along the contour of the part of the workpiece, which is affected by the quality and positioning of the trimming strip and the error. The quality of the cut piece is slightly poor, but the utilization rate of the material can reach 70%~90%.
No waste layout:
The precision stamping part is between the blanking part and the blanking part, and there is no overlap between the blanking part and the side of the strip. The punching part is actually obtained directly by cutting the strip, and the material utilization rate can reach 85. %-90%. However, this method of sorting will make the quality of the cuts slightly worse.
