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Processing technology of integrated aluminum wheel hub and lock ring

A processing technology, integrated technology, applied in the field of wheel manufacturing, can solve problems such as normal production, high cost of lock ring production, deformation, etc.

Active Publication Date: 2014-02-12
WUXI JINXIU HUB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the production cost of the lock ring is very expensive. The equipment invested in processing "NC milling, CNC turning" and the raw material "forged aluminum" are more than 2 times more expensive than ordinary aluminum wheels.
[0003] The difficulty of adopting integrated casting processing technology in the prior art is that it cannot be cut. For example, when cutting on a horizontal machine tool, when the lock ring is separated from the hub, the lock ring is also rotating due to the rotational inertia of the machine shaft, causing the lock ring to fall off. , deformation, the size of the lock ring is destroyed, and cannot be produced normally

Method used

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  • Processing technology of integrated aluminum wheel hub and lock ring
  • Processing technology of integrated aluminum wheel hub and lock ring
  • Processing technology of integrated aluminum wheel hub and lock ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A processing technique for an integrated aluminum wheel hub and a lock ring, comprising the following process steps:

[0022] (1) Melting: A356.2 aluminum alloy ingots are smelted to obtain molten aluminum, which is stored in a heat preservation room; the melting temperature is 720°C, the time is 2 hours, and the temperature of the heat preservation room is 800°C;

[0023] (2) After refining and degassing the molten aluminum, cast it into a heated metal mold to obtain an integrated blank; the casting temperature is 700°C, the time is 30 seconds, the cooling method is water mist cooling or air cooling, and the cooling temperature is 5°C. The cooling time is 120 seconds; demoulding after natural cooling, the total time from casting to demoulding of the integrated blank is 250 seconds;

[0024] (3) Heat treatment: first solid solution treat the one-piece blank at 535°C for 6.5 hours, put it in 60°C water for 3 minutes within 30 seconds after solution treatmen...

Embodiment 2

[0031] Embodiment 2: A processing technology for an integrated aluminum wheel hub and a lock ring, including the following process steps:

[0032] (1) Melting: A356.2 aluminum alloy ingots are smelted to obtain molten aluminum, which is stored in a heat preservation room; the melting temperature is 740°C, the time is 1 hour, and the temperature of the heat preservation room is 950°C;

[0033] (2) After refining and degassing the molten aluminum, cast it into a heated metal mold to obtain an integrated blank; the casting temperature is 720°C, the time is 20 seconds, the cooling method is water mist cooling or air cooling, and the cooling temperature is 15°C. The cooling time is 150 seconds; demoulding after natural cooling, the total time from casting to demoulding of the integrated blank is 320 seconds;

[0034] (3) Heat treatment: first solid solution treat the one-piece blank at 545°C for 5.5 hours, put it in 90°C water for 5 minutes within 30 seconds after solution treatmen...

Embodiment 3

[0041] Embodiment 3: A processing technology for an integrated aluminum wheel hub and a lock ring, including the following process steps:

[0042] (1) Melting: A356.2 aluminum alloy ingots are smelted to obtain molten aluminum, which is stored in a heat preservation room; the melting temperature is 730°C, the time is 1.5 hours, and the temperature of the heat preservation room is 900°C;

[0043] (2) After refining and degassing the molten aluminum, cast it into a heated metal mold to obtain an integrated blank; the casting temperature is 710°C, the time is 25 seconds, the cooling method is water mist cooling or air cooling, and the cooling temperature is 10°C. The cooling time is 130 seconds; demoulding after natural cooling, the total time from casting to demoulding of the integrated blank is 300 seconds;

[0044] (3) Heat treatment: first solid solution treat the one-piece blank at 540°C for 6 hours, put it in 80°C water for 4 minutes within 30 seconds after solution treatme...

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Abstract

The invention relates to a processing technology of an integrated aluminum wheel hub and lock ring. The processing technology comprises the following steps that firstly, aluminum alloy ingots are melted to be cast into an integrated workblank; secondly, an internal rim, an external rim and a center hole are turned in the integrated workblank, an air valve hole is drilled and a thread hole and a PCD hole are connected; thirdly, the outer surface of the lock ring and the outer surface of the wheel hub are roughly turned and finely turned on the integrated workblank to obtain the integrated wheel hub and lock ring; fourthly, a point on the integrated wheel hub and lock ring in the circumferential direction is selected to serve as a first starting point, a cutting disc is used for cutting by 180 degrees along the center of a tool shaft in the clockwise direction from the first starting point, the cutting disc is moved to a second starting point on one side of the first starting point, a supporting point is reserved between the second starting point and the first starting point, and the cutting disc is used for cutting by 180 degrees along the center of the tool shaft in the counterclockwise direction from the second starting point to obtain the lock ring and wheel hub; fifthly, the lock ring is separated from the wheel hub, and finish turning is carried out on the cut faces. According to the processing technology, the size of the lock ring and the size of the wheel hub can be guaranteed, and the wheel hub can be integrally cast.

Description

technical field [0001] The invention relates to a processing technology of an aluminum wheel hub and a lock ring, in particular to a processing technology of an integrated aluminum wheel hub and a lock ring, and belongs to the technical field of wheel manufacturing. Background technique [0002] At present, the production process of the wheel hub with the lock ring is divided into "two-body casting and machining" to complete the manufacturing. The wheel hub is made of A356 aluminum, which is melted and finished by traditional low-pressure or gravity casting, heat-treated, and then processed by CNC lathe, while the lock ring is forged aluminum and directly completed by CNC milling and CNC lathe. In particular, the production cost of the lock ring is very expensive. The equipment invested in processing "NC milling, CNC turning" and the raw material "forged aluminum" are more than twice as expensive as ordinary aluminum wheels. [0003] The difficulty of adopting integrated ca...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 张卫中张海军
Owner WUXI JINXIU HUB
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