Analysis of the characteristics of stainless steel processing technology

2 high cutting temperature: friction and plastic deformation and cutting are great when cutting, the cutting heat; cutting heat is concentrated in the cutting zone and tool chip contact interface, poor cooling conditions. In the same conditions, 1Cr18Ni9Ti cutting temperature more than 45 steel high 200 ℃.

The 3 chip is not easy to break, easy bonding: stainless steel plastic, toughness,vehicle processing chips without stop, not only affects the operation smoothly, the chip will squeeze the machined surface. At high temperature and high pressure,stainless steel and other metal affinity strong, easy to produce adhesion phenomena,and the formation of bue, tool wear is intensified, appeared again tear phenomenon at the machined surface deterioration. The characteristics of martensitic stainless steel with low carbon content of the more obvious.

The 4 tool wear: affinity cutting stainless steel process, produce, diffusion bondingbetween the tool chip, so that the tool produces adhesion wear, diffusion wear, cratercausing the rake face of the tool, cutting edge but also the formation of tiny flakes andgap; plus Stainless Steel Carbide (TiC) particle hardness high, direct contact with the tool cutting tool, friction, abrasion, and work hardening phenomenon, can cause thetool wear.

5 linear expansion coefficient: stainless steel linear expansion coefficient is about 1.5 times that of steel, the cutting temperature, the workpiece is easy to produce thermal deformation, dimensional accuracy is difficult to control.