Stamping parts processing factory pay you stamping test methods

Stamping parts processing factory pay you stamping test methods

Stamping parts and castings, forgings, fights has the characteristic of thin, uniform, light and strong.Stamping can make this a master diameter is difficult to manufacture with enhanced, rib flanging, front, or artifacts, in order to improve its stiffness.Rejected due to the rough mould, workpiece precision can reach micron grade, and high precision, specification is consistent, can punching a hole nest, convex sets, etc.In the actual production, commonly used to approximate the manufacturability of stamping process test, such as deep drawing performance test, bulging performance test and other test materials stamping performance, to ensure the quality of the finished product and high qualified rate.Stamping parts stamping parts processing factory pay you below testing method.

A visual inspection

Visual inspection is mainly used to detect the appearance of the stamping parts and macroscopic defects.

Second, the oil test

With a clean cloth to clean the surface of the outer covering parts.Again with a clean brush oil evenly across the same direction to the stamping parts of the outer surface.Under the strong light of pressing finish coating oil test, suggested that the vertical pressing on the body position.Using this method can be easily found on the stamping of slight pitting, pond, flat ripple.

Three, touch test

With a clean cloth to clean the surface of the outer covering parts.Inspector need to wear the touch gloves along the longitudinal pressing close to touch on the surface of the stamping, the inspection method depends on the checker's experience.Abrasive grinding if necessary by detection of suspicious areas and verified, but this method is an effective method of quick inspection.

Four, flexible gauze grinding

With a clean cloth to clean the surface of the outer covering parts.With flexible sand nets to stamping surface along the longitudinal grinding to the surface of the whole, any pitting, indentation can easily be found.

Five, oilstone grinding

1, first of all, with a clean cloth to clean the surface of the outer covering parts, and then polished with oil stone (20 x 20 x 100 mm or greater), there is circular and hard-to-reach places with relatively small abrasive polishing (for example: 8 x 100 mm semicircle sharpening stone)

2, selection of abrasive particle size depends on the surface condition (such as roughness, galvanized, etc.).Suggest using fine-grained whetstone.Oilstone grinding basically along the longitudinal direction, and a good joint on the surface of the stamping parts and some special place can also supplement horizontal grinding.

Six, submit the test

Put stamping parts in a fixture, fixture based on manual operation requirements, to test the stamping parts.In the actual production, commonly used to approximate the manufacturability of stamping process test, such as deep drawing performance test, bulging performance test and other test materials stamping performance, to ensure the quality of the finished product and high qualified rate.

The precision of the mould and structure directly affect the forming of stamping parts and precision.Mould manufacturing cost and quality of life is to affect the cost of stamping parts and an important factor.Mold design and manufacturing needs more time, it extended the new stamping production preparation time.

In production dozens, hundreds of stampings per minute, in a short time to finish feeding, punching, the pieces, discharge waste process, such as personal, equipment and quality accidents occurred frequently.Therefore, safety in production of stamping is a very important problem.

Mold base, frame, guide the standardization and development of simple mold (for small batch production), compound die, multi-station progressive die (for mass production), as well as the development of quick die change equipment, can reduce the stamping production preparation work and shorten the preparation time, can make the apply to reduce the stamping production preparation work and shorten the preparation time, can make the suitable for mass production of advanced punching technology reasonably applied to small batch more varieties of production.

Stamping equipment in addition to the thick plate with hydraulic press forming, generally adopts the mechanical press.Conveying machinery and tooling libraries and quick die change equipment, and use the computer program control, automatic stamping production line can be of high productivity.

General artifacts in the stamping process, due to the stamping process, especially in the process of cold forging stamping processing, temperature rise quickly, must add lubrication lubrication products, if you do not use lubrication and direct stamping, welding, assembly, surface without oil for welding and assembly of parts.Research and practice show that the love of beauty in metal inert gas arc welding, tungsten electrode gas shielded arc welding, resistance welding applications have good results.