Bending deformation of the cabinet door will the situation, what is causing it? let us know.
Wear a, pilot punches, pin diameter is insufficient;
B, bending parts precision, wear;
C wear, bending the mold (pressure loss);
D, the lack of mold gave way;
E, the slip material, bending the mold without guide function, is not subjected to pressure, when bending;
F, mould structure and design size;
G, red Flash, causing bent bad;
H, bending parts more punch and die set gaskets, resulting in unstable;
I, material thickness variation;
J, material mechanical variations.
Second, the responses:
A, replace the pilot punches;
B, re grinding or replacement;
C, back ground or replaced;
D, inspection and correction;
E, modification design, additional guides and preloading functions;
F, modify dimension decomposition bent the increased bending plastic;
G, studying cutting edge;
H, adjust, with integral steel mats;
I, replacement materials, quality control of feed;
J, replacement materials, feed quality control.