What materials will be used for CNC processing in future wor

Blac source：本站 Time:2021-01-13 09:38:52

General CNC machining usually refers to computer digital control precision machining, CNC lathe, CNC milling machine, CNC boring and milling machine, etc.
CNC, also known as computer gongs, cncch or CNC machine tools, is actually a name from Hong Kong. Later it was introduced into the mainland Pearl River Delta, which is actually CNC milling machine. In Guangzhou, Jiangsu, Zhejiang and Shanghai, there is a kind of machining called "CNC machining center". It is a new type of processing technology. Its main work is to compile processing programs, that is, to convert manual work into computer programming. Of course, you need to have the experience of manual processing.

Advantages of CNC machining
1. The number of tooling is greatly reduced, and complex tooling is not needed to process complex parts. If we want to change the shape and size of the parts, we only need to modify the processing program of the parts, which is suitable for the development and modification of new products.
2. The machining quality is stable, the machining accuracy is high, and the repetition accuracy is high, which can meet the machining requirements of aircraft.
3. In the case of multi variety and small batch production, the production efficiency is high, which can reduce the time of production preparation, machine adjustment and process inspection, and reduce the cutting time due to the use of the best cutting quantity.
4. It can process complex surface which is difficult to be processed by conventional methods, and even process some parts which cannot be observed.
5. The disadvantage of NC machining is that the cost of machine tools and equipment is expensive, and maintenance personnel are required to have a high level.
In the future, in addition to providing 3D printing services for users, the workshop can also provide mold opening and injection molding, silicone compound mold, CNC processing and other services. The main CNC processing materials are as follows:
Aluminum alloy 6061
6061 aluminum alloy is a high-quality aluminum alloy product produced by heat treatment and pre stretching process. Although its strength can not be compared with that of 2XXX or 7xxx series, its magnesium and silicon alloy have many characteristics.
Material advantages:
It has excellent processing performance, excellent welding and electroplating characteristics, good corrosion resistance, high toughness, no deformation after processing, compact and defect free material, easy polishing, easy coloring film, excellent oxidation effect and other excellent characteristics.
7075 aluminum alloy
7075 aluminum alloy is a kind of cold treatment forging alloy with high strength, far better than mild steel. 7075 is one of the most powerful commercial alloys.
Material advantages:
General corrosion resistance, good mechanical properties and anodic reaction. Fine grains make deep drilling performance better, tool wear resistance enhanced, thread rolling more distinctive.
Red copper
Pure copper (also known as red copper) is a kind of ductile metal with excellent electrical conductivity. Its surface is rose red. It is not pure copper, it contains 99.9% copper, and some other elements are added to improve the surface and properties.
Material advantages:
It has good conductivity, heat conduction, ductility, deep drawing and corrosion resistance.
The conductivity and thermal conductivity of red copper is second only to silver, and it is widely used in making conductive and thermal conductive equipment. Red copper has good corrosion resistance in atmosphere, sea water, some non oxidizing acids (hydrochloric acid, dilute sulfuric acid), alkali, salt solution and a variety of organic acids (acetic acid, citric acid). It is used in chemical industry.
It has good weldability and can be made into various semi-finished products and finished products by cold and thermoplastic processing. In the 1970s, the output of red copper exceeded the total output of other copper alloys.
brass
Brass is an alloy of copper and zinc. Brass made of copper and zinc is called ordinary brass.
Material advantages:
It has high strength, hardness and chemical corrosion resistance. In addition, the mechanical properties of cutting are also prominent.
Brass has strong wear resistance. Special brass is also called special brass. It has high strength, high hardness and strong chemical corrosion resistance. In addition, the mechanical properties of cutting are also prominent. The seamless copper tube drawn from brass is soft and has strong wear resistance.
45 steel
45 steel is also called "oil steel" in GB, which has high strength and good machinability.
Material advantages:
It has high strength and good machinability. After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance. The material source is convenient. It is suitable for hydrogen welding and argon arc welding.
Introduction of 40Cr steel
40Cr is the standard steel grade of GB in China, and 40Cr steel is one of the most widely used steel in machinery manufacturing industry.
Material advantages:
It has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. Besides quenching and tempering, the steel is also suitable for cyanidation and high frequency quenching. The cutting performance is good.
Introduction of Q235 steel
Q235 steel is a kind of carbon structural steel, and the Q in its grade represents the yield strength. Usually, the steel is used directly without heat treatment.
Material advantages:
With the increase of the thickness of the material, the yield value will decrease. Due to the moderate carbon content, better comprehensive properties, better matching of strength, plasticity and welding properties, it is the most widely used.
SUS304 steel
SUS304 refers to 304 stainless steel, with good processing performance and high toughness.
Material advantages:
It has good corrosion resistance, heat resistance, corrosion resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, no heat treatment hardening phenomenon and no magnetism.

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