A kind of composite molding method of metal mold
A metal mold and composite molding technology, which is applied in casting molding equipment, metal processing equipment, metal material coating technology and other directions to achieve high precision, promote independent research and development capabilities of molds and their downstream industries, and fast manufacturing speed.
Active Publication Date: 2018-07-13
BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD
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At present, only the Advanced Manufacturing Technology Research Center of the General Academy of Mechanical Sciences in China is carrying out related technical research, and no other institutions have yet seen the integration of patternless casting and laser cladding methods to achieve rapid manufacturing of metal molds with high efficiency, high quality and low cost related research reports
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[0021] In order to clearly express the step characteristics of the metal mold composite molding method of the present invention, the following combination figure 1 , to cite a metal stamping die using the method for rapid precision manufacturing embodiment.
[0022] Firstly, according to the performance requirements and structural characteristics of the metal stamping die, the three-dimensional CAD model of the metal stamping die is layered, and the matrix a that needs to be processed by the digital moldless casting precision forming process and the shape that is surface treated by the laser cladding process are respectively obtained. The key parts corner b, boss c.
[0023] The metal stamping die base a material is made of Cr12MoV die steel, which is driven by the size information of the metal stamping die base a mechanism to process the precision forming machine without die casting. Carry out finishing machining, the spindle speed is 6000rpm, and finally process the metal m...
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The invention discloses a metal mold composite molding method, the steps of which include: a. layering a metal mold CAD model; b. using the model layering information of step a to drive digital moldless casting precision forming equipment to process the metal mold base casting mold; c. using the obtained base casting mold, pouring to obtain a metal mold base body; d. preprocessing the metal mold base body; e. driving a multi-axis laser on the metal mold base body according to the model layering information in step a Carry out laser cladding; f. Follow-up processing, and finally obtain a metal mold for forming parts. The invention can realize the precise and rapid manufacture of metal molds, no other special processing equipment and tooling are needed in the manufacturing process, and the mold products only need a small amount of finishing or even no processing in the end, and basically no waste is generated; the forming mold not only structures the internal crystal grains Small, excellent performance, and can obtain better local use performance according to needs.
Description
technical field [0001] The invention relates to a forming method of a metal mold, in particular to a compound forming method of a metal mold combining a digital moldless casting precision forming process and a laser cladding process. Background technique [0002] Laser cladding molding technology is one of the rapid prototyping technologies, which can quickly manufacture the prototype of the part from the CAD model, and can use the same powder as the part material to directly manufacture the part with the final use functional characteristics. Compared with the traditional material forming method, it has the characteristics of optimized structure of formed parts, excellent tissue performance, gradient function, high degree of flexibility and moldless near-end forming. The existing laser cladding technology is mainly used in the mold manufacturing industry for surface treatment or repair of parts that are susceptible to wear, impact, corrosion and oxidation. The metallurgical ...
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IPC IPC(8): C23C24/10B22C9/00
Inventor 单忠德孙福臻李柳
Owner BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD