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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

Which one is harder, brass or copper?

Which one is harder, brass or copper?

 

    Copper has good electrical conductivity, thermal conductivity and ductility. It is widely used in cables and electrical and electronic components. Because of its low melting point, it is easy to remelt and re-smelt. It is also a relatively environmentally friendly material. Among them, brass and red copper are widely used. Many companies do not know which brass or red copper has high hardness, which leads to errors in the production. The following technicians will introduce to you which hardness of brass parts or red copper is high?

 

brass

 

  What is copper?

 

  Purple copper is named for its purple-red color. It is a relatively pure copper. It is not necessarily pure copper. Generally, it can be approximated as pure copper. It has good electrical conductivity and plasticity, but its strength and hardness are worse.

 

  What is brass? 

 

Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass is Copper-zinc alloy has excellent plasticity, high strength and good corrosion resistance.

 

  Which is harder, brass or copper?

 

  1. The general feature of metal materials is that the hardness of pure metal is lower than that of its alloy, which has high hardness and low melting point. Oxygen-free copper and red copper parts are both pure copper, but the purity is different. The purity of oxygen-free copper is higher, and the purity of red copper can also reach 99.9%~99.99% (different grades have some differences). Red copper contains very few impurities, so there is no Oxygen copper has high purity, soft, red copper is slightly hard (close to oxygen-free copper), and brass is hard.

 

2. There is another feature of copper material. The hardness will become soft after heat treatment, and it will become hard after cold working (cold work hardening). Due to the influence of the hardness, composition, brand and impurities of non-ferrous metals and alloys, it is also affected by the state, crystal The lattice structure has a lot to do with it, so there are generally few specific hardness data, which can only be described qualitatively.

 

3. What is the hardness of red copper? Red copper has a density (7.83g/cm3), a melting point of 1083 degrees, and a copper content of 99.9%. It is non-magnetic. It has good electrical conductivity, thermal conductivity and corrosion resistance, and the copper is purple due to Named for the red color. The electrical conductivity and thermal conductivity of copper is second only to silver, and it is widely used in the production of electrical and thermal conductivity equipment. Copper is used in the atmosphere, seawater, and some non-oxidizing acids, alkalis, salt solutions and various organic acids. , Has good corrosion resistance, used in the chemical industry.

 

4. The density of brass (8.93g/cm3) is used for mechanical bearing lining, wear-resistant, brass "density is greater than copper" copper-based alloy with zinc as the main alloying element, copper is about 60%; zinc is about 40% ; Individual grades contain about 1% of lead, which is impurity. Named because it is often present, brass is beautiful in color, has good craftsmanship and mechanical properties, has a certain degree of corrosion resistance, and has lower electrical conductivity than copper.

 

Which one of brass or copper has higher hardness, I believe everyone will understand from the above introduction. When manufacturing wires and cables, of course, red copper is more preferable. Its conductive resistance is small, and it is more suitable for conductors. The hardness is less than brass, making the wires and cables more flexible. It is easier to operate during use, and at the same time there are fewer impurities, which increases the conductivity of copper.

 

Products that be-cu.com can process include: titanium-parts, stainless-steel-parts,magnesium-parts, zinc-parts,steel-parts, metal-parts,superalloy-parts, plastic-parts, car-parts, industrial-product,medical, anime-model, sla-3d-printing.

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