Prototype parts are usually required for products that have just been developed or designed. Prototype parts are the first step to verify the feasibility of the product. It is the most direct and effective way to find out the defects, deficiencies, and drawbacks of the designed product, so as to target the defects. The improvement, until the lack of individual prototype parts can not be found. At this point, usually a small amount of trial production is needed to find out that the batch is not enough to improve. The finished product is generally not perfect, or even unusable. Once the product is directly produced, it will be completely scrapped, which greatly wastes manpower and material resources and time; while the prototype parts are generally a small number of samples, the production cycle is short, and the waste of manpower and material resources is small. Quickly find out the shortcomings of product design and improve it, providing sufficient basis for product finalization and mass production.
The early prototype parts were restricted by various conditions, mainly in that most of their work was done manually, which made it difficult to strictly meet the size requirements of the appearance and structural drawings due to the long construction period of the prototype parts. The appearance or structure rationality function is also greatly reduced.
With the advancement of science and technology, the rapid development of CAD and CAM technology has provided better technical support for the manufacture of prototype parts, making it possible to make prototype parts accurate. On the other hand, with the increasingly fierce social competition, the speed of product development has increasingly become the main contradiction of competition, and prototype parts manufacturing can effectively increase the speed of product development.
It is under this circumstance that the prototype parts manufacturing industry stands out, becomes a relatively independent industry and flourishes.