Stamping Mold Common Problems And Their Solutions!

Stamping is a part processing method that applies pressure or tension to a sheet, strip, or profile through a die to shape the sheet, and sometimes applies a shear force to the sheet to separate the sheet to obtain the corresponding size, shape, and performance. stamping mold is a stamping press. In national production, compared with traditional mechanical processing, the stamping process has the advantages of saving materials and energy, high efficiency, low technical requirements for operators, and manufacturing products that cannot be realized by mechanical processing through various mold applications. Below, the editor will introduce to you the common problems and solutions of stamping mold!

(1) The punch wears too fast. The main reasons are:

The mold gap is too small. Generally, the total mold gap is 20% or 25% of the material plate thickness. The centering of the convex and concave molds is not good, including the lack of precision of the mold base, mold guide components and turret inserts, etc., resulting in poor mold alignment.

The temperature of the punch is too high, mainly due to the overheating of the punch caused by the continuous long-term stamping of the same mold. Improper mold sharpening method causes mold annealing and increased wear.

(2) Mold with material problem

Mold-carrying material will cause waste to rebound. The related factors are: the sharpness of the cutting edge of the mold, and the larger the rounded corner of the cutting edge, the easier it is to cause waste to rebound. The modulus of the mold and the modulus of each upper position of the machine tool is fixed, and the modulus of the mold is small, which is easy to cause waste to rebound. The gap of the mold is reasonable, if the gap of the mold is not suitable, it is easy to cause the waste to rebound. Whether there is more oil on the surface of the processed plate. Spring fatigue damage.

Methods to prevent the plastic injection mold from carrying material:

Use a special anti-carrying die. Aluminum alloy door and window accessories

Molds are often sharpened to keep them sharp and demagnetized.

Increase the die clearance.

Use oblique edge n die instead of flat edge die.

The mold is equipped with a stripper.

Reasonably increase the mold entry amount.

Check the fatigue strength of the mold spring or discharge sleeve.