How to Select Cutting Tools to Process Iron Castings to Improve Surface Brightness

How to Select CNC Blade to Process Cast Iron to Improve Surface Chromaticity

With the continuation of the equipment processing and manufacturing industry, the quality requirements for gray cast iron products and workpieces are increasingly high. When processing gray cast iron products and workpieces, surface roughness and shape tolerance difference flatness are the basic guarantees of processing quality; The processing output power also determines the competitiveness of the automotive component technology profession. Using machining centers to process gray cast iron parts can increase processing output power, and selecting appropriate alloy structural steel can ensure the quality requirements of gray cast iron. Casting processing

The following is a brief introduction to the characteristics of gray cast iron and how to select raw materials for CNC blades to process gray cast iron castings to achieve high processing quality. Gray cast iron refers to pig iron with massive and high-purity graphite. Its key components are iron, carbon, silicon, manganese, sulfur, and phosphorus. It is widely used as pig iron, and its annual output value accounts for over 80% of the total value of pig iron. Grey cast iron, also known as gray cast iron, has a high purity graphite style in the form of strips and blocks.

Strength characteristics: In pig iron, the ratio of tensile strength to compressive strength is very lazy. At the same strength, compressive strength has a business scale. Similarly, at the same compressive strength, strength also has a business scale, which is due to the fact that the impact of compressive strength is greatly affected by high-purity graphite, while most of the strength only reflects the situation of the substrate.

Moreover, due to its cost-effective cost and simple production process, gray iron flowers are still widely used in small car components such as brake pads, brake system drums, water pump flywheels, and motor housings (motor shafts) and motor bearing end caps for motor technology majors; Compressor parts; Drilling and machining of car transmissions, engine blocks, and machine tool guides.

Open it in a common aluminum alloy profile quenching furnace, and the temperature in the room rises to 280~300 ℃. According to the specifications for the thickness and charging amount of the calcined parts, as well as the placement method, select an appropriate heat insulation time, which is required to be 2~3h, to conduct the quenching step. Then, power off and open the furnace door to scatter the calcined parts onto the refrigeration table for air cooling, to discourage accumulation.

Due to sufficient consideration of the fact that the calcination of aluminum alloy profiles contains a large amount of residue, uneven placement, and the placement of carbides with low melting points, the heating temperature for heat treatment is lower than the temperature with high solubility. The heating temperature for heat treatment shall be from 500 to 535 ℃, and when it is lower than 350 ℃, the furnace shall be slowly heated. The insulation time shall be from 2 to 20 hours, and sufficient consideration shall be given to avoiding deformation and cracking of disorderly components. The aluminum alloy profile shall be cooled in water at 80 to 100 ℃ during calcination. When using a heat treatment temperature, special attention should be paid to the above factors to prevent overheating or overburning.