Classification of hand boards
Due to the limitations of various conditions, most of the work of the early hand board was completed manually, which made the hand board have a long construction period and difficult to strictly meet the dimensional requirements of the appearance and structure drawings. Therefore, its function of checking the rationality of the appearance or structure was greatly discounted.
With the progress of science and technology and the rapid development of CAD and CAM technology, it provides better technical support for hand board manufacturing, making hand board possible.
On the other hand, with the increasingly fierce social competition, the speed of product development has increasingly become the main contradiction of competition, and hand board manufacturing can improve the speed of product development.
It is in this case that the hand board manufacturing industry will stand out, become a relatively independent industry and flourish.
According to the manufacturing methods, the hand board can be divided into hand board and NC hand board:
(1) Manual hand board: its main workload is completed by hand.
(2) CNC hand board: its main workload is completed by CNC machine tools, which can be divided into laser rapid prototyping according to different equipment
RP hand board: it is mainly produced by laser rapid prototyping technology.
CNC hand board: it is mainly produced by processing.
It should be reflected in its rapidity, but it is mainly formed by stacking technology. Therefore, RP hand board is generally relatively rough, and there are certain requirements for the wall thickness of the product. For example, if the wall thickness is too thin, it can not be produced.
The advantage of CNC hand board is that it can accurately reflect the information expressed in the drawing, and the surface quality of CNC hand board is high, especially after its surface spraying and silk screen printing, it is even more glorious than the products produced after opening the mold. Therefore, CNC hand board manufacturing has increasingly become the mainstream of hand board manufacturing industry
According to the materials used for making, the hand board can be divided into plastic hand board and metal hand board:
(1) Plastic hand board: its raw material is plastic, mainly the hand board of some plastic products, such as TV, monitor, telephone, etc.
(2) Metal hand board: its raw materials are aluminum magnesium alloy and other metal materials, mainly hand boards of some high products Such as notebook computer, single player, MP3 player, CD player, etc.
Necessity of making hand board
(1) Inspection of design
The hand board is not only visible, but also touchable. It can intuitively reflect the designer's creativity in the form of physical objects, avoiding the disadvantage of "drawing is good-looking but making is not good-looking". Therefore, hand board production is essential in the process of new product development and product shape deliberation.
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