(1) The number of tooling is greatly reduced, and complex tooling is not required for processing parts with complex shapes. If you'd like to change the shapes and sizes of the parts, all you need to do is modifying the processing program. And the program is suitable for the development and modification of a new product.
(2) The high precision CNC machining has good quality and high processing accuracy, and the repeat accuracy is high, which conforms to the processing requirements of aircraft.
(3) The production efficiency is higher in the case of multi-variety and small-batch production, which can reduce the time of production preparation, machine tool adjustment, and process inspection, and reduce the cutting time due to the use of the best cutting amount.
(4) It can process complex molded surfaces that are difficult to process by conventional methods, and even process some unobservable processing parts.
In addition, with the continuous improvement of technologies of the CNC machining service factory, CNC machining has more emerging advantages.
In addition to providing users with 3D printing services, the future factory can also provide services such as mold opening and injection molding, silicone compound molding, and CNC machining. The CNC machining materials mainly include the following:
(1) Aluminum alloy 6061
6061 aluminum alloy is a high-quality aluminum alloy product produced by heat treatment and pre-stretching process. Although its strength cannot be compared with 2XXX series or 7XXX series, it boasts many characteristics of magnesium and silicon alloy. It has advantages of excellent processing performance, excellent welding characteristics and electroplating, good corrosion resistance, high toughness and no deformation after processing, compact material without defects and easy polishing, easy color film, excellent oxidation effect, etc.
(2) 7075 aluminum alloy
7075 aluminum alloy CNC material is a cold-treated forging alloy with high strength. Which is far better than mild steel. 7075 is one of the most powerful alloys commercially available. It has general corrosion resistance, good mechanical properties and can achieve anode reaction. The fine grains make the deep drilling performance better, the tool wear resistance is enhanced, and the thread rolling is more distinctive.
(3) Pure copper
Pure copper (also known as red copper) is a ductile metal with excellent electrical conductivity, and its surface is rose red. It contains 99.9% copper, and some other elements are added to improve the surface and performance. This CNC machining material has good electrical conductivity, thermal conductivity, ductility, deep drawing and corrosion resistance. It has good weldability and can be processed into various semi-finished and finished products through cold and thermoplastic processing. In the 1970s, the output of red copper exceeded the total output of other types of copper alloys.
Brass is a copper-zinc alloy, and brass composed of copper and zinc is called ordinary brass. Brass has strong wear resistance. Special brass is also called particular brass. It has high strength, high hardness and strong chemical resistance. The mechanical properties of machining are also outstanding. The seamless copper tube drawn from brass is soft and has strong wear resistance.
(5) No. 45 steel
45 steel is the name in GB, which is also called "oil steel". This steel has high strength and great machinability. It has high strength and good machinability. After proper heat treatment, certain toughness, plasticity and wear resistance can be obtained. The material source is convenient, and it is suitable for hydrogen welding and argon arc welding.
(6) 40Cr steel
40Cr is the GB standard steel grade, and 40Cr steel is one of the most widely used steels in the machinery manufacturing industry. This CNC machining material has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity. The hardenability of the steel is good. In addition to the quenching and tempering treatment, the steel is also suitable for cyanidation and high-frequency quenching treatment. The cutting performance is great.
(7) Q235 steel
Q235 steel is a kind of carbon structural steel, and the Q in its steel grade stands for yield strength. Under normal circumstances, the steel is used directly without heat treatment. As the thickness of the material increases, its yield value decreases. Due to the moderate carbon content, the overall performance is great, and the strength, plasticity and welding properties are better matched, and it is the most widely used.
(8) SUS304 steel
SUS304 refers to 304 stainless steel, which has the characteristics of good processing performance and high toughness. This CNC machining material 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.