A new energy vehicle light and durable motor casing manufacturing process

A new energy vehicle and manufacturing process technology, applied in the field of new energy auto parts, can solve the problems of high-strength steel plate stamping performance decline, mechanical, weight heat treatment performance is not perfect, affect the process cost, etc., to improve fatigue strength and reduce production The effect of difficulty and excellent mechanical properties

Inactive Publication Date: 2019-11-19
昆山腾荣机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of high-strength steel plates can achieve light weight, but the stamping performance of high-strength steel plates is reduced, requiring a large forming force, and the springback is serious, which greatly affects the process cost
The complex structure of the motor casing generally adopts casting technology, but only using casting technology, there are many imperfections in the mechanics, weight and heat treatment performance of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A manufacturing process for a lightweight and durable motor casing for a new energy vehicle, comprising the following steps:

[0024] (1) Casting: Make and install the sand core and casting mold according to the overall structure of the motor casing, put the aluminum ingot into the melting furnace for melting, and after melting at 710~725°C, the air pump drives the molten aluminum to flow into the casting mold through the conduit Middle; after casting, add liquid aluminum to the riser in time to feed the shrinkage, and cool slowly to below 100°C to obtain a motor housing with a sand core; the aluminum alloy used for the casting is cast aluminum alloy, preferably ZL104, ZL108 , one of ZL109, ZL110; the slow cooling method adopts air cooling, and the time is 1.5h;

[0025] (2) Cleaning out of the box: loosen the molding sand at the riser with an air shovel, separate the upper and lower boxes, take out the casting in time, clean the sand core with the air shovel, deburr, p...

Embodiment 2

[0032] A manufacturing process for a lightweight and durable motor casing for a new energy vehicle, comprising the following steps:

[0033] (1) Casting: Make and install the sand core and casting mold according to the overall structure of the motor casing, put the aluminum ingot into the melting furnace for melting, and after melting at 710~725°C, the air pump drives the molten aluminum to flow into the casting mold through the conduit Middle; after casting, add liquid aluminum to the riser in time to feed the shrinkage, and cool slowly to below 100°C to obtain a motor housing with a sand core; the aluminum alloy used for the casting is cast aluminum alloy, preferably ZL104, ZL108 , one of ZL109, ZL110; the slow cooling method adopts air cooling, and the time is 1.6h;

[0034] (2) Cleaning out of the box: loosen the molding sand at the riser with an air shovel, separate the upper and lower boxes, take out the casting in time, clean the sand core with the air shovel, deburr, p...

Embodiment 3

[0041] A manufacturing process for a lightweight and durable motor casing for a new energy vehicle, comprising the following steps:

[0042] (1) Casting: Make and install the sand core and casting mold according to the overall structure of the motor casing, put the aluminum ingot into the melting furnace for melting, and after melting at 710~725°C, the air pump drives the molten aluminum to flow into the casting mold through the conduit Middle; after casting, add liquid aluminum to the riser in time to feed the shrinkage, and cool slowly to below 100°C to obtain a motor housing with a sand core; the aluminum alloy used for the casting is cast aluminum alloy, preferably ZL104, ZL108 , one of ZL109, ZL110; the slow cooling method adopts air cooling, and the time is 1.5h;

[0043] (2) Cleaning out of the box: loosen the molding sand at the riser with an air shovel, separate the upper and lower boxes, take out the casting in time, clean the sand core with the air shovel, deburr, p...

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PUM

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Abstract

The invention discloses a manufacturing process for a light and durable motor shell of a new energy vehicle. The manufacturing process for the light and durable motor shell of the new energy vehicle comprises the steps that casting is carried out, specifically, the casing is carried out after , aluminum liquid is added to a riser in time for supplement after casting, and a motor shell with a sandcore is obtained; the cleaning is carried out after opening a box, specifically, a pneumatic digger is used to clean molding sand and the sand core, and deburring, grinding, shot blasting, and sand blasting are carried out, or welding is repaired according to requirements; first heat treatment is carried out, specifically, a T1 heat treatment process is used, and a heat treatment casting is obtained; auxiliary hot stamping is carried out, specifically, the heat treatment casting after being heated enters a pre-set stamping die and stamping punch-pin to be stamped; a step of quenching, and theheat treatment casting after the hot stamping is quenched; turning finish machining is carried out, specifically, a semi-finished motor shell is obtained; second heat treatment is carried out, specifically, T6 heat treatment is carried out to the semi-finished motor shell after the finish machining, and the finished product is obtained. According to the manufacturing process for the light and durable motor shell of the new energy vehicle, traditional motor shell casting and manufacturing process is improved, the finished aluminum alloy motor shell is excellent in mechanical properties, the strength is increased by more than 15%, the fatigue strength is increased by more than 20%, the wear resistance is excellent, and as a new energy motor shell, the motor shell is light and durable.

Description

technical field [0001] The invention belongs to the field of new energy automobile accessories, and in particular relates to a manufacturing process for a lightweight and durable electric casing of a new energy automobile. Background technique [0002] In recent years, new energy vehicles including pure electric vehicles and hybrid vehicles have emerged as the times require, and combined with high-performance drive motors and the integration of control technology, energy storage technology, and material technology, the high efficiency and high efficiency of electric vehicles in real life have been brought into play. Environmental protection, energy saving, light and so on. Electric vehicles have solved the energy crisis and environmental pollution. In the process of technological innovation, they have made great contributions to alleviating the financial crisis of the global automobile industry and energy and environmental problems. [0003] Reducing the weight of the body ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 沈钧
Owner 昆山腾荣机械有限公司
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