What are the processing steps of Dongguan screws?
The screw is one of the most widely used accessories in the mechanical field, and its basic function is to connect and tighten. Dongguan screws now occupy a very important position in the screw market. On the one hand, it is related to the relatively developed manufacturing industry in Dongguan. On the other hand, since Dongguan¡¯s exports are relatively prosperous, screws are one of the basic components and the number of exports each year is Very huge. So what are the general processing steps of Dongguan screws?
First, prepare the drawings
The processing of Dongguan screws belongs to metal processing, and the size requirements are relatively strict, and generally only have an error of 1 mm. Therefore, it must be processed in accordance with the drawings when processing. Drawing a drawing is a relatively technical job. It is necessary not only to master a drawing software, but also to be familiar with the relevant national standards. When drawing the drawing, the material and quantity should be marked on the drawing. There are several materials used to make screws, and the applicable fields and performance of each material are very different, and the material is also an important factor in the price of the screw.
Second, purchase raw materials
The raw materials used to process screws are mainly blanks or round rods and square rods. The choice of material depends on the number of screws to be processed. If the batch is very large, it is generally more cost-effective to use blanks, because the blanks are very convenient and quick to process. The labor required is much smaller. However, if the blanks are used for processing, the initial investment is relatively large, the cost of the mold is particularly high, and the processed ones Some of the screws are relatively rough, which is not suitable for more sophisticated instruments and equipment.
The other is to use round rods or square rods for processing. This processing does not have too many restrictions on the number of screws. First cut the whole material and then process it step by step according to the drawings. There are several processes to go through before and after, which requires a lot of manpower, and the cost is much higher than that of the blank.
Finally, the Dongguan screws are processed on lathes and other processing equipment.