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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

The importance of laser cladding coatings in exhaust valves

The effect of coating thickness on surface and internal quality is the result of different coating thicknesses treated with different powers. Under the condition of constant coating thickness, the change of power has little effect on the quality of the cladding layer. When the power is the same, the surface quality and internal quality of the cladding layer will change greatly when the thickness of the coating is changed. When the power is in the range of 1.8kW~2.0kW and the coating thickness is 1mm~2mm, a good cladding layer can be obtained.

When the coating thickness is 3mm, continue to increase the laser power to change the quality of the cladding layer. However, in actual work, the power of the equipment cannot be increased indefinitely, and the thickness of the coating is not as thick as possible according to the working characteristics of the valve. In actual production, it should also be considered that after laser cladding, post-grinding should be carried out. Therefore, the appropriate thickness of the exhaust valve laser cladding coating is 2mm, which can not only meet the working conditions of the valve, but also ensure the stability of the process.

The influence of adhesive on the quality of the cladding layer During the pre-coating process of the valve, the adhesive has a significant influence on the quality of the cladding layer. The adhesive should firstly ensure good bonding performance and certain high temperature resistance, and there should be no splashing and peeling during the heating process. The adhesive must also be easy to volatilize, does not damage the performance of the cladding layer, is conducive to the formation of the cladding layer, and does not contain moisture.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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