The causes and solutions of scratches when stamping on a press are as follows:
Cause:
Rough surface of the mold
The surface of the mold is not smooth enough, there are tiny unevenness or burrs, which cause scratches by contacting with the workpiece during the stamping process.
Material surface impurities
There are impurities, dust or oil etc. attached to the surface of the raw material, which will scratch the surface of the workpiece during stamping.
Precision High Speed Punching Machine
Insufficient lubrication
Insufficient lubrication during the stamping process increases the friction between the workpiece and the mold, resulting in scratches.
Improper mold clearance
Too large or too small a gap between the convex and concave dies of the mold will affect the flow of material in the stamping process, resulting in increased friction between the material and the surface of the mold, resulting in scratches.
Wear and tear of the mold
Long-term use of the mold appears wear and tear, the surface precision decreases, thus causing scratches on the workpiece during stamping.
Precision High Speed Punching Machine
Solution:
Mold surface treatment
Polishing, grinding and other treatments are performed on the mold to improve the surface finish of the mold and remove burrs.
Clean material surface
Before stamping, make sure the surface of raw material is clean to remove impurities, dust and oil.
Precision High Speed Punching Machine
Optimize lubrication
Choose the right lubricant and make sure the lubrication is sufficient and even during the stamping process.
Adjust die clearance
According to the material and stamping process requirements, reasonably adjust the die clearance to ensure smooth material flow.
Mold Maintenance and Replacement
Regularly check the wear and tear of the molds, and repair or replace the molds with serious wear and tear in time.
High-speed punching machine rotates the flywheel driven by the electric motor to store energy, and then releases the energy of the flywheel instantly through the control of the clutch and brake to drive the slider to carry out high-speed reciprocating motion to realize the punching action.
Dongguan OREKU Precision Machine Tool Co., Ltd., established in 2001, is a high-tech innovative enterprise dedicated to manufacturing high-precision machinery and equipment. Since its establishment, the company has focused on the R&D and manufacturing of CNC precision machining centers, precision stamping machining centers, high-speed vertical lathes and automated production lines, leading the development of the industry.
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