Stainless steel sheet metal processing division and the operation needs to have clearly defined the blanking mode according to the different choices of expansion graph and quantities of different stainless steel sheet metal processing methods of laser, CNC punching, shearing mould, etc., the main steps of the stainless steel sheet metal processing, mainly divided into the following points:
Select blanking, after completion, into the next process, different parts according to the requirements of the processing into the corresponding process;
The workpiece in sheet metal bending, pressure riveting process completed after surface treatment, different ways of handling the surface of the plate, cold plate processing after surface plating, plating after no spray treatment, is used for phosphating, phosphating after spraying treatment. Plating surface cleaning, degreasing, and then spray;
In the assembly process, after spraying before the assembly, to protect the original sticker for spraying tear, determine the parts of internal thread holes are not scattered into the paint or powder, in the whole process, to wear gloves, hand to avoid dust attached on the workpiece, the workpiece are blown clean. Assembled after entering the packaging, protection packaging bag into the special workpiece after inspection, no special packaging of workpieces with bubble film packaging, the packaging before the bubble film can cut into packaging workpieces, so as not to affect the cutting side side of the packaging, processing speed of large quantities of stainless steel; can be customized special carton or bubble bag, pad, wooden tray, etc.. After packing, put in the carton, and then attach the finished product or semi-finished product label on the carton.
The quality of stainless steel sheet metal processing in addition to the strict requirements of the production process, it is necessary to separate from the production of quality inspection, first, according to the strict drawing size, two is strictly check the appearance quality. This can be found in the process of stainless steel sheet metal processing errors in the development of the map, the process of bad habits, errors in the process.
Bending to first according to the drawings on the size of the cutter and knife groove bending the material thickness determined by the product and tool, avoid collision caused by deformation is the key on the mode selection (in the same product, may use different types of mold, mold selection) is determined according to the sheet thickness;
Pressure riveting, die height selection should consider the stud different, and then the pressing pressure is adjusted to ensure the stud and the workpiece surface, avoid stud not fastened or extruded over the workpiece surface, causing the workpiece scrapped. Welded with argon arc welding, spot welding, carbon dioxide welding, manual arc welding, we must first consider the welding position in stainless steel sheet metal production considering positioning tooling to ensure accurate welding position.
In order to welding firm, hit a bump in the workpiece to be welded, can make the bump in electricity before welding and flat uniform contact, in order to ensure the heating, but also can determine the welding position, the same, to carry out welding, to adjust the preloading time, holding pressure time, maintenance time stop time, ensure the workpiece can be spot welded firmly;
In the sheet metal surface pretreatment, into the spraying process, the workpiece assembly after spraying, tooth or part of conductive holes need to be protected, check into the soft tooth hole rod or screw, need to protect the conductive tape with high temperature, large quantities of the positioning fixture positioning to protect, so when spraying can not spray to the workpiece, the nut on the outer surface of workpiece can see (flanging) protection with screw holes, so after spraying the workpiece (nut hole flanging) need back teeth.