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A gear manufacturing method

A gear manufacturing and gear technology, which is applied in the direction of improving process efficiency and energy efficiency, can solve the problems of low impact resistance and poor comprehensive mechanical properties, and achieve strong impact resistance, strong comprehensive mechanical properties, and improve processing efficiency Effect

Active Publication Date: 2022-05-20
广州锻造一厂股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional gear manufacturing process is to use free forging to forge the blank. The blank is manufactured according to the largest outer circle of the finished product, and the gear machining allowance is left around, and then the finished gear body is processed from the blank with the machining allowance. This manufacturing method Low impact resistance, poor comprehensive mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] As a kind of gear manufacturing method of the embodiment of the present invention, described method comprises the following steps:

[0031] (1) Calculate the weight consumption of the finished blank according to the cross-sectional area ratio of the finished gear profile structure and the finished blank, intercept the cylindrical blank, and the weight ratio of the cylindrical blank to the finished blank is 110%;

[0032] (2) After heating the cylindrical blank in step (1), at T 1 Under the centigrade temperature, that is, at 1145 DEG C, piering is carried out to obtain the thickened blank, and the height of the thickened blank is 70% of the height of the cylindrical blank in the step (1);

[0033] (3) to step (2) obtains thick rear billet at T 2 The final calcining is carried out at 940°C to obtain the final calcined blank, and the finished blank is obtained after deburring the final calcined blank;

[0034] (4) heat treatment is carried out to finished blank, and des...

Embodiment 2

[0039] As a kind of gear manufacturing method of the embodiment of the present invention, described method comprises the following steps:

[0040] (1) Calculate the weight consumption of the finished blank according to the cross-sectional area ratio of the finished gear profile structure and the finished blank, intercept the cylindrical blank, and the weight ratio of the cylindrical blank to the finished blank is 110%;

[0041] (2) After heating the cylindrical blank in step (1), at T 1 Under the centigrade temperature, that is, at 1220 DEG C, piering is carried out to obtain a thickened blank, and the height of the thickened blank is 70% of the height of the cylindrical blank in the step (1);

[0042] (3) to step (2) obtains thick rear billet at T 2 Under the temperature of Celsius, that is, the final calcining is carried out at 980°C to obtain the final calcined blank, and the final calcined blank is deburred to obtain the finished blank;

[0043] (4) heat treatment is car...

Embodiment 3

[0048] As a kind of gear manufacturing method of the embodiment of the present invention, described method comprises the following steps:

[0049] (1) Calculate the weight consumption of the finished blank according to the cross-sectional area ratio of the finished gear profile structure and the finished blank, intercept the cylindrical blank, and the weight ratio of the cylindrical blank to the finished blank is 110%;

[0050] (2) After heating the cylindrical blank in step (1), at T 1 Under the centigrade temperature, that is, at 1180 DEG C, piering is carried out to obtain a thickened blank, and the height of the thickened blank is 70% of the height of the cylindrical blank in the step (1);

[0051] (3) to step (2) obtains thick rear billet at T 2 Under the temperature of Celsius, that is, the final calcining is carried out at 980°C to obtain the final calcined blank, and the final calcined blank is deburred to obtain the finished blank;

[0052] (4) heat treatment is car...

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PUM

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Abstract

The invention provides a gear manufacturing method, comprising the steps of: cutting a cylindrical blank, the weight ratio of the cylindrical blank to the finished blank is 108% to 120%; 1 Carry out thickening at Celsius temperature; (3) at T 2 Carry out final calcining at Celsius temperature to obtain the final calcined blank; (4) heat-treat the finished blank, the heat treatment includes normalizing and tempering, and the normalizing temperature is T 3 Celsius temperature, tempering temperature is T 4 Celsius temperature; (5) tooth processing; (6) tooth surface heat treatment, tooth surface heat treatment includes quenching and tempering, quenching temperature T 5 Celsius, the tempering temperature is T 6 Celsius temperature, 0.55≤T 6 / T 5 ≤T 4 / T 5 ≤T 2 / T 5 ≤1.00≤T 1 / T 5 ≤1.20, 0.55≤T 6 / T 5 ≤T 3 / T 5 ≤T 2 / T 5 ≤1.00≤T 1 / T 5 ≤1.20. The gear manufacturing method of the present invention limits the relationship between pier roughening temperature, final calcining temperature, forming blank normalizing temperature and quenching temperature, tooth surface quenching temperature and tempering temperature, so that the metal streamline of the prepared gear product is complete and impact resistant Strong resistance, strong comprehensive mechanical properties, and greatly improved service life.

Description

technical field [0001] The invention relates to the field of gear processing, in particular to a gear manufacturing method. Background technique [0002] Gears are used in work vehicles and other types of machine applications, such as to transmit torque within vehicle transmission components. The traditional gear manufacturing process is to use free forging to forge the blank. The blank is manufactured according to the largest outer circle of the finished product, and the gear machining allowance is left around, and then the finished gear body is processed from the blank with the machining allowance. This manufacturing method Low impact resistance and poor comprehensive mechanical properties. Contents of the invention [0003] The object of the present invention is to provide a gear manufacturing method to overcome the disadvantages of the prior art. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a gear manufact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/14
CPCB23P15/14Y02P10/25
Inventor 邓曙光曹学灵郭年春
Owner 广州锻造一厂股份有限公司