The common problems in the manufacturing process of metal stamping parts

The common problems in the manufacturing process of metal stamping parts

At present, metal stamping parts are widely used in our life, with the development of science and technology, but there are still some problems more or less.Metal stamping parts processing technology is becoming more and more mature, the following to introduce the common problems and reasons of metal stamping parts processing.

1, roller printing: cleaning roller or feed roller adhesion caused by foreign body (with a fixed pitch), generally roller printing on the sheet metal foreign body can be removed;

2, burr: punching or not completely to keep more than expected, in the process of cutting edge burr under the plate cutting surface parts, based on cut surface, burr height is value = "2" unitname = "mm" w: st = "on" style = "margin: 0 px; padding: 0 px; the list - style: none;"> 0.2 mm above, iron powder that happens here might damage the mold and produce the concavo-convex.

3, coil could edge crush corrugate: uncoiling line could die on the guide roller guide roller clearance hours of wrinkling, caused by coil into surrender value.

4, methods: material abnormal convex or concave surface, is a foreign body uncoiling line (iron filings and dust) mixed with;

5, sliding seal: caused by roller sliding, when a sudden stop or accelerated;

When we were in the mold design must have a reasonable intensive interval value, radius and machining precision, etc.Design of bending die, should take effective measures to reduce springback, and minus the springback amount on the mold;Reasonable design of rounded corners, to prevent the bending crack.Drawing the circle with prevent wrinkling, and pressure to moderate;With proper lubrication drawing reduce the resistance and to prevent mould stick or make the workpiece to wear.

The defects of metal stamping parts are many, such as scratch, crack, and mark, burr, oxidation and so on, we must pay attention to these details in metal stamping parts processing, can bring more benefits.Spin is a kind of metal turning process.In the process of machining, the mould of billet with spinning active or spinning rotating round billet and spinning mould rotation, relative mandrel spinning head and feed movement, billet making hollow billet continuous local deformation and to obtain the required solid of revolution parts.

Plastic is the use of established grinding tool shape for secondary finishing the appearance of product.Mainly reflects in plane, feet, etc.For part of the material is elastic, there is no guarantee that a molding quality, adopt again processing is a kind of basic materials used mould separation of stamping process, it can be directly made into flat parts or for other stamping processes, such as bending, deep drawing, forming, such as preparing blank, can also be carried out has on the stamping forming cutting, trimming, etc.Blanking is widely used in automobiles, home appliances, electronics, light industry, instrumentation, machinery, railway, communications, chemical industry, textile, and aerospace industries.Cutting processing accounts for about 50% ~ 60% of the entire stamping processing operations.

The forming process

Bending: the metal sheet, pipe fittings and shaped bend at an Angle, curvature and the shape of the plastic molding method.Bending is widely used in the production of stamping parts of one of the main process.The bending of metal material is essentially a elastic-plastic deformation process, after unloading, the direction of the workpiece can produce elasticity deformation, says the springback.Springback affecting the precision of the workpiece, and the key technologies of bending process must be considered

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