Prototype model of CNC machining acrylic

CNC machining acrylic (1) The superiority of the prototype:

general machine tool processing cannot solve the problem of automatic machining of complex parts. CNC machining is characterized by strong adaptability, high processing accuracy, high production efficiency and modernization conducive to production management. After applying to prototype machining, the prototype can accurately reflect the information expressed by the drawings, and save money, high surface quality, and improve the production efficiency circle.

The material of the prototype is rich and diverse, and the material of SLA laser rapid molding is mainly photosensitive resin. In the vacuum injection type, the silicone mold is mainly used in the mold replication method. The materials of CNC machining method are divided into two categories: metal and non-metal. Non-metals mainly refer to some engineering materials, such as ABS, PC, PP, POM, PA and MMA (Acrylic)Electricity, wood and wood.

CNC machining materials, usually sheets, with a standard thickness, generally, it is difficult to order plates with a thickness of more than 100MM, and plates with a thickness of 150MM must be customized. Therefore, the price of the plate in the prototype processing is not the same, the price of the special thickness of the plate is different.

acrylic (1) It is written by English Acrylics, and the pressure Board is composed of methyl acid methyl ester monomer (MMA)Polymerization, that is, poly (MMA (1)Organic glass plate. High transparency of acrylic (Light transmittance of 92%) With excellent weather resistance and good surface hardness and gloss, the processing plasticity is large. Usually in the prototype model, Alec (1) It is suitable for making prototype models with high transparency such as lights and lenses.

Process Plan (Take the lampshade as an example)

1. Blanking

Since the lampshade sample is a single-piece, small-batch product. The blanks are of different sizes and need to be sawed off a large acrylic board.

2, front processing

a, clamp positioning

ordinary machine tool clamps are usually used through flat-mouth pliers or special fixtures for machine tools, however, the material of the workpiece in this paper is acrylic and the hardness is softer. If the workpiece is deformed or damaged by ordinary methods. Therefore, when designing the CNC milling machine, an ABS board is placed on the original Workbench. The acrylic workpiece and ABS Workbench are strongly glued together through 502 glue. It plays the role of clamping and positioning.

B, front rough machining

The front of the lampshade can be regarded as a cavity class parts, therefore, mining groove processing is adopted.

c, front semi-finishing

tools with front semi-finishing use rough machining the tool, the knife Road adopts the curved surface parallel finishing knife Road.

d, front finishing

Front finishing is divided into 2 steps: 1 for>The surface of 800 is finished with high profile. (2) for <800 of surfaces are processed in parallel using surfaces.

e, local finishing

high profile finishing and surface are generally optional the prototype model is partially processed by two parallel finishing tools.

f, plaster shape

gypsum shape has three effects. First, the plaster is filled on the front, and the structural strength can be effectively enhanced after solidification; The second is the milling plane, which can be used as the datum plane when the opposite side is positioned; The third is the milling profile, and the milling profile is a clip for r on the reverse side.

Collectively, the effect of make 3d printer on industrial society has been to eliminate rubber prototyping and drastically reduce the time long associated with aluminum rapid prototyping.
To learn more about polycarbonate polymer， give us a call at Shenzhen Tuowei Model Technologies Co., Ltd. or visit us online by going to Tuowei Model.
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