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Rapid prototyping method for investment casting

A molding method and investment casting technology, applied in casting molding equipment, casting molds, casting mold components, etc., can solve the problems of high single-piece price, low manufacturing cost of single product, long manufacturing cycle, etc., to reduce manufacturing costs, The effect of shortened manufacturing cycle and high precision

Active Publication Date: 2015-10-21
无锡范尼韦尔工程有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are mainly the following types of mold forming: 1. Rapid mold technology: design rapid molds for the entire product, and use the investment casting process to manufacture the final product, which has the advantages of high precision and good consistency between parts. Its disadvantage is that the overall mold structure is complex, the manufacturing cycle is long, the mold cost is high, and the manufacturing cost of a single product is low; 2. Wax model 3D printing technology: 3D printing of wax models for the entire product, and the final product is manufactured by investment casting process , which has the advantages of short manufacturing cycle and high precision, and its disadvantage is that the product cost is directly related to the product weight, and the size of the wax mold is limited by the equipment; The investment casting process produces the final product, which has the advantage of high precision, but the disadvantage is that the single piece is expensive, and the rounded corners and narrow positions are prone to processing marks

Method used

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  • Rapid prototyping method for investment casting
  • Rapid prototyping method for investment casting
  • Rapid prototyping method for investment casting

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Embodiment Construction

[0027] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as Figure 1 to Figure 6 As shown, in the investment casting rapid prototyping method of this embodiment, the product includes a blade 1, a runner ring 2 and an inner ring 3, and the forming method includes the following steps:

[0029] The first step is to split the product into blade parts and non-blade parts. The blade part includes the runner ring 2 and the blade 1 installed on the runner ring 2, and the non-blade part is the inner ring 3;

[0030] In the second step, the blade part is printed into a wax model using a 3D printer. After the 3D printer prints, the supporting wax needs to be cleaned to ensure that there is no gap between the runner surface, the blade surface, and the transition angle between the blade 1 and the runner ring 3. The supporting wax remains; the two wax models need to be cooled to room temperature b...

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Abstract

The invention relates to a rapid prototyping method for investment casting. A product includes a blade, a runner ring and an inner ring. The prototyping method comprises the following steps: 1, splitting the product into a blade portion and a non-blade portion, wherein the blade portion including the runner ring and blade mounted on the runner ring, and the non-blade portion is the inner ring; 2, printing the blade portion into a wax mold by a 3D printer; 2, molding the non-blade portion by rapid tooling, and pressing into a wax mold; 4, bonding the wax molds of the blade portion and the non-blade portion, and sealing the connecting portion; 5, fixing the connecting portion to eliminate sharp corners and pits and to ensure that no significant gap at the junction; 6, welding the connected to wax molds with a gate wax mold; and 7, producing a shell, dewaxing, melting and cleaning. The invention employs a wax mold splicing way, which greatly reduces the manufacturing cost of the mold and shortens the manufacturing cycle, and the manufactured mold has high precision and good quality.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an investment casting molding method. Background technique [0002] In the prior art, there are mainly the following types of mold forming: 1. Rapid mold technology: design rapid molds for the entire product, and use the investment casting process to manufacture the final product, which has the advantages of high precision and good consistency between parts. Its disadvantage is that the overall mold structure is complex, the manufacturing cycle is long, the mold cost is high, and the manufacturing cost of a single product is low; 2. Wax model 3D printing technology: 3D printing of wax models for the entire product, and the final product is manufactured by investment casting process , which has the advantages of short manufacturing cycle and high precision, and its disadvantage is that the product cost is directly related to the product weight, and the size of the wax mold is limite...

Claims

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Application Information

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IPC IPC(8): B22C9/04
Inventor 夏靖
Owner 无锡范尼韦尔工程有限公司
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