Search This Blog

Working principle of slow wire processing

by
 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
Image

Hydrostatic guideway of CNC machining lathe

by
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

Introduction of KOVAR parts

by
KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR  machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stress,
Image
Menu

Analysis on the matching of auto parts industry

cncmachining January 16, 2022

China’s auto parts industry is highly fragmented, a single individual has little capital, and its competitiveness is weak. It cannot form a strong competitive advantage by itself. At present, China’s auto parts industry is still at a low level, with repeated fragmentation, low concentration, and single supporting facilities. Most of the auto parts companies only provide a complete set of auto parts, unable to form a large-scale production, can not effectively reduce the cost of enterprises. At the same time, the product structure of auto parts is unreasonable. There are too few high-tech products and high value-added products. They are mainly concentrated in labor-intensive low value-added products. The scale is small, the product types are more, and the level of specialization is low. Low production efficiency.

At 20°C to 40°C, the NOx mass fraction shows an upward trend. This is due to the decrease in the proportion of premixed combustion at the initial stage of combustion and the earlier occurrence of the highest explosion pressure. When the intake air temperature is from 40℃ to 50℃, the mass fraction of NOx shows a downward trend. This is due to the shortening of the combustion reaction time and the decrease of the maximum explosion pressure. In addition, the combustion avoids the top dead center and more combustion is concentrated in the downward phase of the piston. reason.

In summary, lowering the intake air temperature can effectively reduce soot and NOx emissions. Under the conditions of an intake pressure of 2.6MPa and an EGR rate of 0.3, the effects of different intake temperatures on the combustion of high-density and low-temperature diesel engines are studied, and it is concluded that the combustion mode of high-density and low-temperature diesel engines has greater advantages in achieving low emissions and high thermal efficiency. potential. Due to the low market access standards in China’s auto parts industry, more and more manufacturers have entered, which has led to a narrowing of the distance between price and cost. The specialization of technical equipment and labor organization has promoted the improvement of the efficiency of enterprises in the industrial cluster.

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.

Link to this article：Analysis on the matching of auto parts industry

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.：Cnc Machining，Thank

Facebook Twitter Whatsapp
Next
Prev Post
Previous
Next Post

Contact Us

Get In Touch or Get A Quote

Need an expert? you are more than welcomed to
leave your contact info and we will be in touch shortly YOUR COMPANY
Sifangyuan Industrial Park, Xinshapu, Huaide Community
Humen town, Dongguan City, Guangdong Province.  860769-82886112
 860769-82886112
© Copyright 2020 Advance China 5 Axis CNC Machining Shop. Designed by PTJ Shop.