Making reamer with scrap carbide rod
October 18 06:03:53, 2018
In the production practice, we often encounter the phenomenon of the holed workpiece that has been processed and shrinkage after heat treatment and quenching. For example, we process a batch of workpieces as shown in Figure 1, a workpiece material GCr 15, a quenching hardness of HRC 53-58, and a φ1.2_0~(+0.02)mm hole on the workpiece cannot be assembled with the fitting after quenching. Under the condition, we use φ1.5mm waste cemented carbide rod, after repeated trials and grinding into Figure 2