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Mould three-dimensional rapid forming and repairing method based on reverse engineering

A forming repair and reverse engineering technology, applied in the field of mold processing, can solve the problems of long repair process, difficulty in guaranteeing the dimensional accuracy and shape accuracy of repair area, and low repair efficiency, so as to improve repair efficiency, improve repair accuracy, and reduce work. amount of effect

Inactive Publication Date: 2015-03-25
NANJING INST OF ADVANCED LASER TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This repair method has simple equipment, low cost, and easy on-site repair, but the repair process takes a long time, the repair efficiency is low, and the repair quality depends heavily on the technical level of the workers and the proficiency of the operation. If the structure of the failure area is complex, then Dimensional accuracy and shape accuracy of the repaired area will be difficult to guarantee

Method used

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  • Mould three-dimensional rapid forming and repairing method based on reverse engineering
  • Mould three-dimensional rapid forming and repairing method based on reverse engineering
  • Mould three-dimensional rapid forming and repairing method based on reverse engineering

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Embodiment Construction

[0025] This embodiment is metal die-casting mold repair, and the present invention will be further described below in conjunction with the accompanying drawings through the embodiment.

[0026] The die is used for die-casting of aluminum alloy, and its material is H13 alloy, which belongs to hot work die steel. The steel has high hardenability and thermal cracking resistance, good heat resistance and thermal fatigue stability, excellent comprehensive mechanical properties and high tempering resistance stability at higher temperatures.

[0027] After long-term service, there is a large extrusion wear damage at the positioning flange of the mold. Now the patented process technology of the present invention is used to repair and remanufacture the damaged area, such as figure 1 As shown, the implementation process is as follows:

[0028] 1. Grind the area to be repaired of the failed mold, remove the fatigue layer and oxide layer, and clean it with acetone and alcohol;

[0029] ...

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Abstract

The invention discloses a mould three-dimensional rapid forming and repairing method based on reverse engineering. Three-dimensional reverse engineering is carried out on a faulted mould through the reverse engineering technology, comparison calculation of a faulted mould model and a standard mould model is finished in combination with a CAD technology, and recognition and obtaining of a CAD model in a to-be-repaired region of the mould are realized; slicing processing is carried out on the CAD model in the to-be-repaired region of the mould through the layering thought of the rapid forming technology, then three-dimensional rapid forming and repairing are carried out on the to-be-repaired region of the mould step by step and layer by layer through the argon arc welding technology, finally proper after-treatment and machining are carried out on the repaired region, and rapid repairing and re-manufacturing of the mould are finished. Accurate control over the repairing layer thickness and repairing amount of the mould is realized, the repairing after-treatment links are effectively reduced and even eliminated, the repairing accuracy and quality of the mould are improved, and an effective means with low cost, high accuracy and high efficiency is provided for on-site repairing and re-manufacturing of the mould.

Description

technical field [0001] The invention relates to the technical field of mold processing, in particular to a reverse engineering-based three-dimensional rapid prototyping repair method for molds. Background technique [0002] Molds are the basic process equipment in the manufacturing industry. In electronics, automobiles, home appliances, communications and other products, 60-80% of the parts must be formed by molds. Products produced with molds have high precision, high complexity, high consistency, high productivity and low consumption, which are unmatched by other processing methods. The mold is also a "benefit amplifier". The value of the final product produced by the mold is often dozens or hundreds of times the value of the mold itself. The mold structure is complex, the manufacturing cycle is long, and the cost is high. However, due to the high pressure and impact force or high working temperature during work, the mold is prone to wear, damage and other failure forms ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
CPCB23P6/00
Inventor 肖猛高雪松张涛刘建涛
Owner NANJING INST OF ADVANCED LASER TECH
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