The processing ability of the lock forming machine is designed according to the processing of ordinary steel plate. The common ordinary steel plate, galvanized steel plate and plastic composite steel plate all have good seaming forming performance. The strength of stainless steel plate is higher than that of ordinary steel plate. Before using stainless steel plate to bite, the forming experiment should be done first, so as not to overload the equipment and cause excessive wear or mechanical accidents. Because of the poor plasticity of the aluminum plate, it is easy to crack when the undercut is formed, and the forming test should be carried out before the construction. At the same time, due to the lack of elasticity of the aluminum plate, the air duct of the aluminum plate can not be snapped.
Before the lock forming machine is used, the feeding guide rail shall be debugged in strict accordance with the debugging requirements of the equipment, and the feeding guide rail shall be adjusted to the specified position size and then fixed. If the actual position of the feed guide rail is smaller than the specified position size, the undercut will not be formed; if it is larger than the specified position size, because the feed is too wide, the undercut size will be out of tolerance, resulting in two sheets unable to be spliced or waste of materials; if the feed guide rail is seriously skewed, it is easy to produce uneven deviation defects before and after the undercut width.
The thickness of undercut plate of lock forming machine shall be within the specified range of products of various specifications. If it is less than the minimum thickness, it is easy to produce crack, wrinkle and other defects during undercut; if it is greater than the maximum thickness, it will cause abnormal damage of forming roller, overload of transmission system and blocking of vehicle and other faults due to the obvious increase of bending force because the square of the thickness of plate is proportional.