01

Non-abrasive cutting edges;

02

High cutting edge temperatures, causing wear and distortion of inserts;

03

The intrinsic porous structure causes an increase in surface area, which allows oxidation or carbonisation during heat treatment, and these oxides and carbides are very hard and wear resistant;

04

Due to the presence of pores, the hardness values fluctuate over a small area. While the measured macro hardness is HRC 20-35, the hardness of the particles that make up the part can be as high as HRC 60 and these hard particles can lead to severe and sharp edge wear;

05

Many powder metallurgical parts are harder and stronger after heat treatment.

06

There may be inclusions in the part. These problems can be referred to as difficult machining of powder metallurgical parts.