Aluminum and aluminum alloy processing can be divided into rolling, extrusion, drawing, forging, spinning, forming and deep processing. Rolling is a plastic deformation process in which the ingot is pulled into the rotating roll room by friction, and its cross section is reduced, its shape is changed, its thickness is thinned and its length is increased by means of the pressure exerted by the roll. What are the characteristics of aluminum alloy NC machining? The processing method can be divided into what content, welcome to read!

What are the characteristics of aluminum alloy NC machining?

1. Low hardness of aluminum alloy

Compared with titanium alloy and its quenched steel, the hardness of aluminum alloy is lower. Of course, the hardness of heat-treated or die-casting aluminum alloy is also very high. The HRC hardness of ordinary aluminum plate is generally below hrc40. Therefore, when machining aluminum alloy, the tool load is small. Because the aluminum alloy has good thermal conductivity, the cutting temperature for milling aluminum alloy is relatively low, which can improve its milling speed.

2. Low plasticity of aluminum alloy

Aluminum alloy has low plasticity and low melting point. When machining aluminum alloy, the problem of tool sticking is serious, the chip removal performance is poor, and the surface roughness is also high. In fact, the main reason for processing aluminum alloy is that the effect of sticking knife and roughness is not good. As long as the two major problems of sticking knife and machining surface quality are solved, the problem of aluminum alloy machining will be solved.

3. The tool is easy to wear

Due to unsuitable tool materials, when machining aluminum alloy, tool wear is accelerated due to problems such as tool sticking and chip removal.

What are the processing methods of aluminum alloy?

Aluminum alloy can be divided into deformation aluminum alloy and casting aluminum alloy according to processing methods: deformation aluminum alloy can withstand pressure processing. It can be processed into aluminum alloy materials of various shapes and specifications. It is mainly used for manufacturing aviation equipment, building doors and windows, etc. Wrought aluminum alloys can be divided into non heat treatable strengthened aluminum alloys and heat treatable strengthened aluminum alloys. The non heat treatable reinforced type can not improve the mechanical properties through heat treatment, but can only be strengthened through cold working deformation. It mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum and antirust aluminum. The mechanical properties of heat treatable strengthened aluminum alloys can be improved by heat treatment such as quenching and aging. It can be divided into hard aluminum, forged aluminum, superhard aluminum and special aluminum alloys. Cast aluminum alloy can be divided into aluminum silicon alloy, aluminum copper alloy, aluminum magnesium alloy, aluminum zinc alloy and aluminum rare earth alloy according to chemical composition. Among them, aluminum silicon alloy also includes hypereutectic silicon aluminum alloy, eutectic silicon aluminum alloy, monoeutectic silicon aluminum alloy. Cast aluminum alloy is used in as cast state.

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