In recent years, with the development of society, the diversification of precision casting alloy steel precision products, the processing of non-precision casting alloy steel tends to be diversified, and it is more and more difficult. The requirements for precision casting alloy steel processing equipment are also getting higher and higher.

First, the requirements of precision casting alloy steel processing tools

1. Tool geometry parameters require the processing of precision cast alloy steel, the geometry of the cutting part of the tool, generally should be considered from the front and rear corners.

2. The surface roughness of the cutting tool is used to improve the surface of the cutting portion of the cutting tool, which can reduce the resistance of the blade when it is broken and improve the durability of the tool.

3. Requirements for mandrel materials Precision casting alloy steel processing Because of the large cutting force, the mandrel must have sufficient strength and rigidity to avoid the process of cutting vibration and deformation. This requires the use of a knife with a suitable large cross-sectional area, and should also be used to produce Arbor, a high-strength material.

4. Requirements for Cutting Tool Parts When machining precision cast alloy steel, the material of the tool cutting part is required to have high wear resistance and to maintain its cutting performance at a higher temperature. Carbide tools are more suitable for precision casting alloy steel cutting.

Due to the increasing use of precision cast alloy steel profiles, the demand for precision cast alloy steel profiles is also growing, which has promoted the development of precision cast alloy steel processing to a certain extent.

Second, the difficulty of precision casting alloy steel processing

1. Precision casting alloy steel has severe work hardening: cutting hardening during hardening, cutting tool in the work hardening area, shortening tool life.

2. Large cutting force and high cutting temperature: material strength type, cutting tangential stress, plastic deformation, large cutting force. In addition, the thermal conductivity of the material is extremely poor, and the high temperature tends to concentrate in a narrow area near the cutting edge of the tool, thus accelerating the wear of the tool.

3. Precision casting alloy steel processing convenience rod: no matter the chip toughness of precision casting alloy steel processing, the cutting temperature is very high. When hard debris flows through the rake face, the tool wear is accelerated.

4. Tool wear accelerating materials generally contain high melting point elements, plastics, high cutting temperature, which makes the tool wear faster, sharpening the knife and changing the tool frequently, thus affecting the production efficiency and increasing the tool use cost.