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Mold rapid machining method based on 3D printing mold core

A technology of 3D printing and processing methods, applied in the direction of manufacturing, additive processing, processing environment adjustment, etc., to achieve the effect of shortening processing cycle, fast transportation, and improving flexibility/adaptability

Inactive Publication Date: 2019-01-04
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method realizes the optimal design, shortens the processing cycle of the mold, reduces the cost, enhances the performance or function of the end product, solves the difficulties faced by traditional processing technologies such as CNC in processing complex geometric structures, and realizes fast transportation. Realized the green and intelligent transformation and upgrading of the traditional mold industry

Method used

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  • Mold rapid machining method based on 3D printing mold core

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Embodiment 1

[0047] A method for rapid processing of molds based on 3D printing mold cores, comprising the steps of:

[0048] S1: Choose No. 45 steel as the core material;

[0049] S2: The 3D printing technology chooses selective laser cladding (SLM), uses UG software to design the 3D drawing of the metal injection mold core, and then converts the successful STL format into the SLM forming equipment software for slicing;

[0050] S3: Select No. 45 steel as the substrate, fix it on the worktable, adjust the height of the substrate, and make the laser spot be on the surface of the substrate;

[0051] S4: Put the prepared metal powder into the hopper powder, evacuate the vacuum chamber, and then inject high-purity argon to protect the chamber;

[0052] S5: Turn on the red light switch of the laser, and adjust the optimal processing area through red light scanning. Raise the temperature of the substrate to 200°C;

[0053] S6: After the red light positioning is completed, turn off the red li...

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Abstract

The invention discloses a mold rapid machining method based on a 3D printing mold core. The mold rapid machining method based on the 3D printing mold core is characterized by comprising the followingsteps of S1, preparing needed raw materials; S2, designing a geometric structure of the mold core, and converting the geometric structure of the mold core into a format matched with a format in a control equipment system; S3, using a 3D printing technology to print the mold core after S2 is finished; S4, polishing and grinding the mold core in S3 to a desired size and surface accuracy; S5, assembling the mold core in a mold base after S4 is finished; and S6, carrying out follow-up molding or casting mold batch production. By directly and rapidly performing 3D printing on the mold core, polishing the surface of the mold core and fastening the mold core on the mold base, the follow-up molding or casting mold batch production of the mold core is carried out and realized. According to the moldrapid machining method based on the 3D printing mold core, an optimal design is realized, the efficiency or function of a terminal product is enhanced, a difficult problem of traditional machining technologies such as CNC during machining the complicated geometric structures is solved, the design is free, the manufacturing is rapid and green, and green and intelligent transformation and upgradingof the traditional mold industry are really realized.

Description

technical field [0001] The invention belongs to the technical field of mold making, and more specifically relates to a rapid mold processing method based on a 3D printing mold core. Background technique [0002] In modern industry, molds and manufacturing are highly dependent. Components for countless products need to be manufactured by molding (injection, blow molding, and silicone) or casting (investment molding, foundry, and spinning). The processing of modern molds is mainly completed by technologies such as computer numerical control machine tools (CNC) and electric discharge machining (EDM). However, the above-mentioned technologies have disadvantages such as long production cycle, high manufacturing cost, high energy consumption, and environmental pollution. More importantly, these traditional mold processing technologies severely restrict the performance / functional optimal design of end products, such as: traditional cooling molds seriously affect the cooling effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F3/115B22F3/24B33Y10/00B33Y40/00B33Y80/00B28B1/00B29C64/153B29C64/371
CPCB22F3/115B22F3/24B28B1/001B29C64/153B29C64/371B33Y10/00B33Y40/00B33Y80/00B22F2003/247B22F2003/248B22F10/00B22F10/32B22F10/66B22F10/12B22F12/17B22F10/28B22F10/18B22F10/25Y02P10/25
Inventor 李宁
Owner HUAZHONG UNIV OF SCI & TECH
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