- The oxide scale of the parts shall be removed. There shall be no scratch, scratch and other defects on the surface of the parts, and the burr and flash shall be removed;
- After quenching and tempering, high frequency quenching, tempering at 350-370 ℃, hrc40-45, carburizing depth 0.3mm, and aging treatment at high temperature.
- The undeclared shape tolerance shall meet the requirements of gb1184-80, the allowable deviation of undeclared length dimension shall be ± 0.5mm, and the casting tolerance zone shall be symmetrical to the basic dimension configuration of blank casting;
- The undeclared fillet radius is R5 and the undeclared chamfer is 2 × 45 ° and the acute angle is blunt;
- The temperature shall not exceed 100 ℃. After the gear is assembled, the contact spot and side clearance of the tooth surface shall meet the provisions of GB10095 and gb11365;
- When assembling the hydraulic system, it is allowed to use sealing filler or sealant, but it should be prevented from entering the system. Parts and components (including purchased parts and outsourcing parts) entering the assembly must have the certificate of inspection department before assembly.
At present, the level of precision and metal precision machining technology is one of the important symbols of a country’s manufacturing industry level. Computer gong processing, Dongguan high speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC precision machining can achieve the accuracy, surface roughness, processing size range and geometry shape are important symbols of a country’s manufacturing technology level – precision and metal precision machining technology has become the key technology to achieve success in International competition. The development of cutting-edge technology, the development of national defense industry, the development of microelectronics industry, etc., all need precision and special processing technology to manufacture relevant instruments and equipment.
The precision of metal precision machining is more than one order of magnitude higher than the traditional precision machining. In addition to the need for new processing methods or new processing mechanisms, there are special requirements for workpiece material, processing equipment, tools, measurement and environmental conditions. The material of the workpiece must be extremely fine and uniform, and properly disposed to eliminate the internal residual stress, ensure the dimensional stability of the height, and prevent deformation after processing. The precision machining equipment should have high motion accuracy, the straightness of guide rail and the rotation accuracy of spindle should reach 0.1 micron level, and the micro feed and positioning accuracy should reach 0.01 micron level.
In the production process of precision parts, the process of directly changing the shape, size and performance of raw materials (or blanks) into finished products is called technological process. The main part of the production process. For example, casting, forging and welding of blank, heat treatment of changing data performance, machining of parts, etc. all belong to technological process. In order to pass the process, the process of cutting out the thickness of the parts is also called the process of cutting out the thickness of the parts.
In the precision machining of titanium alloy parts, many factors have an impact on the surface processing quality. Computer gong processing, Dongguan high-speed computer gong processing, Dongguan mold processing, Dongguan Mechanical parts processing, CNC processing, such as the geometric parameters of cutting tools, spindle rotation accuracy, slide motion accuracy, natural vibration and vibration isolation, system stability, etc. These factors themselves have certain regularity, and these regular influencing factors have an impact on the surface processing quality with their inherent rules. In order to achieve ultra precision turning, it is necessary to optimize the cutting parameters, so it is necessary to predict the surface roughness to be obtained. Computer gong machining, Dongguan high-speed computer gong machining, Dongguan mould processing, Dongguan Mechanical parts processing, CNC machining, through the research on the model theory of influencing factors of external surface roughness, we can further study the machine tool, unit parts, cutting tools, cutting mechanism and cutting technology. There are many factors affecting the surface quality of machining, such as cutting performance of additive material, motion precision of spindle, motion precision of slide plate, natural vibration and vibration isolation, tool and cooling, cutting parameters and environmental conditions.
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