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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

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

Performance analysis of sand cores for automobile castings

The assembly of sand cores for complex auto parts is done manually on the assembly line supported by the roller table. Since the binders used in large quantities are materials such as paper pulp waste liquid and compound grease, the price is cheap, the core sand is easy to mix, and the performance of the sand core basically meets the needs of mass production of automobile castings. This was very advanced in the 1950s. However, the sand core must be dried, which undoubtedly increases energy consumption. Cast iron smelting Gray cast iron smelting uses 4 cold-air cupolas with a melting rate of 3t/h, which are divided into two groups of alternating furnaces, and form a double smelting system with an electric arc furnace with a capacity of 3t. The produced molten iron is poured into castings such as cylinder blocks, cylinder heads, gearbox housings, clutch housings and brake drums.

malleable cast iron smelting adopts two cold-air cupolas with different melting rates, and is equipped with two electric arc furnaces with a capacity of 5t to adjust the chemical composition of molten iron, and mainly produces malleable iron parts for the chassis. The sand processing system is centrally arranged in the sand processing department of the workshop. It uses 6 advanced Soviet-made balance wheel sand mixers at that time to supply molding sand for each of the gray cast iron and malleable cast iron molding production lines. General castings are made of single sand; important castings such as the cylinder block and rear axle housing are made of surface sand and back sand.

The mixed molding sand is uniformly modified by the intermediate storage and mixing hopper, and then sent to the sand hopper above the molding machine by a belt conveyor. The old sand after falling sand is transported by a belt conveyor, crushed by a drum screen, sieved, electromagnetic separation drum, etc. to remove the scrap metal in the sand, and then sent to the old sand bucket for reuse. After the clay and coal powder are crushed into powder by the ball mill dry method, they are sent to the hopper above the sand mixer and added to the sand mixer through a quantitative system; after the new sand is dried by the horizontal drying drum, it is sent into the new sand by the belt conveyor In the hopper.

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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