Manufacturing method of compressor volute casing

A manufacturing method and compressor technology, applied in manufacturing tools, mechanical equipment, casting and molding equipment, etc., can solve the problems of unguaranteed mold accuracy, long processing cycle, poor inner cavity flow channel accuracy, etc., to reduce production trial production cycle, The effect of shortening the manufacturing cycle and ensuring the manufacturing accuracy

Inactive Publication Date: 2013-04-17
CHINA NORTH IND GRP NO 70 RES INST
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that there are many procedures, complex procedures, long processing cycle, and some must be repaired by manual wooden molds, manual intervention is large, the accuracy of the inner cavity flow path is poor, and the accuracy of the mold cannot be guaranteed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A method for manufacturing a compressor volute, comprising the following steps:

[0014] (1) Establish a three-dimensional model of the compressor volute: According to the two-dimensional drawings of the product, use pro / engineer or UG to make a three-dimensional model of the compressor volute, and cut it into two from the center according to its structure, taking into account For casting shrinkage, enlarge the model by 1.7% respectively;

[0015] (2) Import into the computer: import the 3D model obtained in step (1) into the computer system of the rapid prototyping equipment, and refer to the specific size and shape of the compressor volute to determine the sintering parameters such as the sintering bottom surface, wall thickness, and origin of the coordinate system;

[0016] (3) Laser sintering: first slice the three-dimensional model in step (2) at 0.25mm, and then perform laser sintering of polystyrene plastic powder. The particle size of polystyrene is 160 mesh. Du...

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PUM

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Abstract

The invention relates to a manufacturing method of a compressor volute casing. The method comprises the following steps: establishing a three-dimensional model of the compressor volute casing, introducing the three-dimensional model into rapid molding equipment, directly sintering out a shape of the compressor volute casing of a plastic material instead of a sand core by using a powder sintering technology and a laser numerical control technology, and finishing casting and molding of the compressor volute casing through a traditional investment casting method. As the mold manufacturing and sand core making process is eliminated in the method, the trial period in the production is reduced, the efficiency is increased and the production cost is reduced; and the manufacturing method provided by the invention is especially suitable for trail production in a development phase and medium and small-scale production. Through the adoption of the manufacturing method provided by the invention, the manufacturing period is reduced, and the manufacturing precision of the product can be also guaranteed. Compared with similar domestic methods, the manufacturing method provided by the invention has the advantages as follows: as technological design and manufacture of a wooden mold and the making process of the sand core are eliminated, an energy-saving and environment-friendly effect is taken.

Description

technical field [0001] The invention belongs to the technical field of forming and processing, and in particular relates to a method for manufacturing a compressor volute of a supercharger. Background technique [0002] Generally, the casting of the turbocharger compressor volute for a vehicle is usually made by making a wooden mold, then making a sand core, and finally casting an aluminum material. The specific steps are: first, the mold design needs to be carried out according to the shape of the volute of the compressor, considering the combination plan of the mold pouring, the parting surface of the mold, the draft angle, etc., and then the snail-shaped mold is made through the machining center equipment and manual grinding The outer skin and the core of the thin-walled inner cavity flow channel with complex shapes are then combined with multiple mold modules to complete the production of the sand core, and finally combined together for casting molding of conventional c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C7/02B22C7/04F04D29/42
Inventor 邢卫东王晋伟张继忠宋志伟葛炜花琳冯云虎陈钢
Owner CHINA NORTH IND GRP NO 70 RES INST
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