Today you can see that a standard automobile factory has at least four workshops, namely stamping workshop, welding workshop, painting workshop and assembly workshop. These are the four major processes of automobile manufacturing. Whether it is a 50,000-class mini-car or a million luxury cars, as long as it is a production car, it can't escape the four major processes. Even if it is a hand-made sales model, the core of its manufacturing ideas is still four major processes.
The workflow of stamping workshop Stamping is the first step of the four major processes. If summed up in one sentence, it is to turn thin and flat steel plates into parts with specific shapes. So for the stamping workshop, the raw material is a steel coil that looks like toilet paper, and it is a long steel plate when it is pulled out. And then cut into appropriate size as required. The stamping workshop of the main engine factory mainly produces outer covers, such as front and rear covers, doors, roofs, side frames and fenders.
These parts have several characteristics, one is large area, the other is high dimensional accuracy, and the third is inconvenient for long-distance transportation, so the main engine factory generally does not outsource these parts, but chooses to produce them by itself to avoid deformation of parts caused by long-distance transportation and facilitate quality control. Other summary components on the car are generally outsourced to suppliers, so the stamping workshop is more like a supplier of parts produced and sold by the OEM. There is no concept of complete vehicle, and there are no semi-finished vehicles moving on the assembly line.
The stamping workshop for mass production of large-scale exterior decoration parts has the highest degree of automation among the four workshops, so there are also the least workers, most of whom are technicians, who are responsible for the maintenance of equipment and molds. The real work here depends on the media How big is the media here? It is about two or three stories high, and each press will be equipped with a set of molds. What kind of mold you install will produce what shape parts. The quality of the mold also directly determines the dimensional accuracy of the parts.
Of course, a part can't be molded by pressing once, and it must be pressed several times step by step to finally become what we need. Therefore, presses often appear in groups, end to end connected into an assembly line, and there will be mechanical hands to transfer parts between presses. The production speed of stamping workshop is much higher than the other three workshops, and it needs to produce a variety of parts, so it is mass production. For example, first, 65,438+0,000 side frame outer panels are produced in one breath, and then 65,438+0,000 front cover outer panels are produced in one breath by changing molds until all rounds.
But even so, there will still be a large number of production gaps, so technicians can use this time to carry out mold maintenance and other maintenance work. The production scene of the stamping workshop is the most shocking of the main engine factory, and there is no one. Because each press can produce thousands of tons of pressure, it is deafening when it is started, and the ground shakes. The steel plate goes in from the front end of the assembly line, and the finished product is sent out from the end after three times, five times and two times. Standing in front of these earth-shaking behemoths really makes people awe of technology.
The above is a brief introduction to the stamping process. Because the content is too hard-core, I try to eliminate the knowledge points that are too boring and professional, hoping to help you understand the great crystallization of automobile and human industry from a deeper perspective!