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Precision stamping and punching the analysis of the causes of bad appearance of net - precision
by:Fortuna
2021-02-09
In trial-produce precision stamping and punching net, often look bad?
Some causes of bad appearance?
The author tell you today!
Precision stamping causes of bad appearance are: jump bruised, cuttings, stamps, burrs, material, bending clearance, bending mould scratch, round hole, deformation.
The cause of the jump chip crushed: blade gap is too big, cutting oil and choose oil;
Between punch and blade in the vacuum formed when high speed cutting;
The punch cutting depth;
Blanking shape is simple;
Mesh not demagnetization.
Cuttings reasons: improper punching and shearing clearance, under heavy cutting, burrs is too large, punch edge collapse scrape, bending die.
Stamps and burrs reasons: stripper milling machine processing position without chamfering, strip edge, punch wear or crash;
Fitting clearance of blade and punch is wrong;
Turn and bending clearance reason: wrong fitting clearance of blade and punch, box processing position is not allowed.
Bending die abrasion reasons: bending precision stamping head transition R Angle is small.
Material: round hole guiding face section of the length of the needle,
Round hole if there is a flash;
The size of the gap between guide plate and strip;
Guide plate of the teeth and guided needle distance size;
Round hole and guide the clearance of the needle is reasonable;
The length of the feeding interval;
Whether the machining accuracy to meet the design requirements;
Press too fast.
Reason: no trimming, material flash;
Template flash;
Strip is too weak;
Convex hull shape;
The mold clean, eliminate the stamps and crushed;
Precision metal stamping parts.
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