< P style = "text indent: 2em;" > < span style = "list style type: none;" > < strong style = "list style type: none;" > flange < / strong > < / span > < strong style = "list style type: none;" > drilling < / strong > is the main CNC equipment for processing stainless steel flange at this stage, and drill bit also plays an important role. Find the right drill to make the stainless steel flange processing with half the effort. < br style = "list style type: none;" / > before selecting the drill bit, first look at the difficulties in the processing of stainless steel workpieces. If you find out the difficulties, you can quickly and accurately find the drill used in the NC plane drilling machine. < br style = "list style type: none;" / > 1. What are the difficulties in stainless steel flange machining? < br style = "list style type: none;" / > 1. Easy to stick to the tool: the chip is strong and tough during stainless steel processing, and the cutting temperature is very high. When the strong and tough chip flows through the rake face, there will be adhesion and fusion welding, which will affect the surface roughness of the workpiece. Severe work hardening: austenitic stainless steel and some high temperature alloy stainless steel have austenitic structure, and the work hardening tendency is large during cutting, which is usually several times of that of ordinary carbon steel. Cutting tool in the work hardening area can shorten the tool life. Cutting force and cutting temperature are high: this type of material has high strength, large tangential stress and large plastic deformation during cutting, so the cutting force is large. In addition, the thermal conductivity of the material is very poor, resulting in the increase of cutting temperature, and the high temperature is often concentrated in the narrow area near the tool edge, which accelerates the tool wear. Fast tool wear: the above materials generally contain high melting point elements, high plasticity and high cutting temperature, so that the tool wear is accelerated, and the tool grinding and changing are frequent, which affects the production efficiency and improves the tool use cost.