Die-Stamping Problems And Troubleshooting
1. The convex die wears too fast
(1) The clearance of the die is small, generally, the total clearance
die stamping mold is 20%, 25% of the material plate thickness.
(2) Bad alignment of the convex and concave die, including the mo
seat and mold guiding components and turret inserts are not accu
enough and other reasons cause bad alignment of the mold to the
scarf parts.
(3) The temperature of the convex die is too high, mainly due to th
overheating of the punch caused by the same die stamping for a lo
time.
(4) Improper die stamping sharpening method, resulting in anneal
of the die stamping mold and increased wear.
(5) Local one-sided punching, such as step punching, punching an
or shearing, the lateral force of aluminum alloy door and window p
will make the punch deviate to one side and the clearance of that
will be reduced, causing serious die wear. If the machine tool die
stamping is not installed with high precision, it will seriously make
punch deviate over the upper die, causing damage to the convex d
and concave die stamping mold.
, Die-Stamping Problems And Troubleshooting
2. Die stamping with material problems die with the material will caus
scrap rebound
(1) The sharpness of the die edge, the larger the rounded angle of the edge,
the easier it is to cause a scrap rebound.
(2)The amount of mold entry, amount of mold entry for each upper bit of the
machine tool is certain, the mold is small, and easily causes scrap rebound.
(3) The clearance of the mold is reasonable, if the mold gap is not appropriat
easy to cause the scrap to rebound.
(4) Whether there is more oil on the surface of the processed plate.
(5) Spring fatigue damage.
The solution is to prevent mold with the material.
(1) Use a special anti-banding concave die.
(2) Keep the die sharpened and demagnetized frequently.
(3) Increase the clearance of the concave die stamping mold.
(4) Use oblique edge n die instead of flat edge die stamping mold.
(5) Install rewinders in the mold.
(6) Reasonably increase the mold entry volume.
(7) Check the fatigue strength of the mold spring or unloading sleeve.
1. The convex die wears too fast
(1) The clearance of the die is small, generally, the total clearance
die stamping mold is 20%, 25% of the material plate thickness.
(2) Bad alignment of the convex and concave die, including the mo
seat and mold guiding components and turret inserts are not accu
enough and other reasons cause bad alignment of the mold to the
scarf parts.
(3) The temperature of the convex die is too high, mainly due to th
overheating of the punch caused by the same die stamping for a lo
time.
(4) Improper die stamping sharpening method, resulting in anneal
of the die stamping mold and increased wear.
(5) Local one-sided punching, such as step punching, punching an
or shearing, the lateral force of aluminum alloy door and window p
will make the punch deviate to one side and the clearance of that
will be reduced, causing serious die wear. If the machine tool die
stamping is not installed with high precision, it will seriously make
punch deviate over the upper die, causing damage to the convex d
and concave die stamping mold.
, Die-Stamping Problems And Troubleshooting
2. Die stamping with material problems die with the material will caus
scrap rebound
(1) The sharpness of the die edge, the larger the rounded angle of the edge,
the easier it is to cause a scrap rebound.
(2)The amount of mold entry, amount of mold entry for each upper bit of the
machine tool is certain, the mold is small, and easily causes scrap rebound.
(3) The clearance of the mold is reasonable, if the mold gap is not appropriat
easy to cause the scrap to rebound.
(4) Whether there is more oil on the surface of the processed plate.
(5) Spring fatigue damage.
The solution is to prevent mold with the material.
(1) Use a special anti-banding concave die.
(2) Keep the die sharpened and demagnetized frequently.
(3) Increase the clearance of the concave die stamping mold.
(4) Use oblique edge n die instead of flat edge die stamping mold.
(5) Install rewinders in the mold.
(6) Reasonably increase the mold entry volume.
(7) Check the fatigue strength of the mold spring or unloading sleeve.
