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metal stamping parts
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پنجشنبه 26 خرداد 1401 زمان : 11:47

Mould is the main process equipment, metal stamping processing surface quality of stamping parts, size tolerance, productivity and economic benefit and reasonable die structure and its design is very big, in the manner of the combination of the metal stamping process has simple model of the single process, and process.
Set workpiece stamping process, such as dispersion and concentration of processing is a complicated problem, it depends on the bulk of the workpiece shape, structure, quality, process characteristics, etc., for usually mass-produced metal stamping parts automobile stampings, should take process as concentrated solution, adopting compound stamping progressive die, or to both increase productivity, and can achieve safety in production.
Stamping oil played a key role in the stamping process, good cooling performance and extreme pressure antiwear performance for improve the service life of die and workpiece precision have a qualitative leap. According to the different workpiece materials, stamping oil in use at the same time as the emphasis of the performance is different.
(1) silicon steel plate is relatively easy to die cutting materials, generally for the workpiece cleaning, on the premise of preventing the cutting burr can choose stamping oil of low viscosity.
(2) carbon steel when choosing stamping oil should be according to the technological difficulty level and to stretching method and skim to better viscosity of oil.
(3) because of galvanized steel sheet and chlorine additive can produce chemical reaction, so the galvanized steel sheet should be paid attention to when choosing stamping oil type chlorine stamping oil white deep draw stamping rust problem can occur, and using yida bohai embellish type sulfur stamping oil can avoid rust problem, but should skim as soon as possible after stamping.
(4) stainless steel plate is prone to hardening of the material, requires the use of high oil film strength, resistance to sintering stretch oil. Generally use stamping oil containing sulfur chloride compound additive, while guarantee the extreme pressure performance, avoid artifacts appear problems such as burrs and rupture.
According to the nature of the stamping process to be completed, and a variety of stamping equipment can force characteristics, think about all the deforming force required for stamping and die shut height and outline the size of the main factors, combined with existing equipment situation to reasonably select equipment type and tonnage. In accordance with the simple structure to divide continuous stamping stamping press, punch press and three kinds of compound stamping punch.
(1) simple stamping press
In a punch stroke only completed a process of stamping process. Is a simple die blanking and punching.
(2) continuous stamping press
Punch stroke at a time, in the mold in different parts of the complete collection of stamping process at the same time, every time send into distance is controlled by blocking pin.
(3) the compound stamping punch
In a stroke in the mold on the same parts at the same time complete stamping process that number. In composite is car radiator cap the biggest characteristic of stamping mould has a convex concave die, compound die is suitable for large batch, high precision stamping parts.

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