What is the inspection standard for precision castings and why it should be tempered

Content 1: Inspection standards for precision castings.

Content 2: What is the purpose of tempering of precision castings?

Regarding the above two points, then it should not be too late. Let's take a closer look at it right away.

1. Inspection standards for precision castings.

The surface of the precision casting should be clean, dust-free, dirt-free, and free of defects such as blisters, pores, cracks, and linear defects.

Surface defects of precision castings with a depth of not more than 2mm are allowed. If the processing face is wrong, it is not more than 1mm.

2. What is tempering of precision casting products?

Goal 1: Reduce the brittleness of castings and eliminate or reduce their internal stress.

Use 2: Reach the required mechanical properties, such as toughness, plasticity, etc.

Use 3: Stabilize the size of the workpiece, and sometimes reduce the hardness to facilitate processing, such as cutting.