CN101648234A - Hot bending process for bending shell - Google Patents
Hot bending process for bending shell Download PDFInfo
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- CN101648234A CN101648234A CN200910060350A CN200910060350A CN101648234A CN 101648234 A CN101648234 A CN 101648234A CN 200910060350 A CN200910060350 A CN 200910060350A CN 200910060350 A CN200910060350 A CN 200910060350A CN 101648234 A CN101648234 A CN 101648234A
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- workpiece
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- shell
- heating
- hot bending
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- Bending Of Plates, Rods, And Pipes (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a hot bending process for bending a shell, which belongs to a metal shell bending and processing process and mainly solves the problems of complicated bending and processing process and high cost of the prior art. The hot bending process for bending the shell comprises the following steps: (1) preparing pipe materials in corresponding specifications according to an actual requirement and then blanking; (2) heating a part of a workpiece to be bent until the part of the workpiece to be bent reaches a required angle value; (3) heating and tempering the workpiece at 300-400DEG C to remove the stress of the workpiece; (4) carrying out thermal refining on the workpiece to ensure that the hardness of the workpiece reaches HB277-321; and (5) processing and shaping the workpiece on a lathe, wherein in the step (2), an intermediate-frequency heating coil or flame is adopted to heat the part of the workpiece to be bent. The invention combines the hot bending process and amechanical machining process, thereby saving resources, reducing the production cost and improving the rigidity of the workpiece, and being suitable for the processing of bending universal shafts atvarious angles.
Description
Technical field
The present invention relates to a kind of bending process of universal drive shaft shell, specifically, relate to a kind of hot bending process of curved universal drive shaft shell.
Background technology
The processing method of traditional curved shell bending is to select for use bar to make through operations such as boring, bore hole, heat treatment, machineds, and this method has the following disadvantages: boring, bore hole when 1. cost is taken a lot of work in a large number; 2. waste of raw materials is bigger, the general bar that uses big specification; 3. cost is high, and is very uneconomical.
Summary of the invention
The purpose of this invention is to provide a kind of hot bending process for bending shell, solve problems of the prior art, not only can simplify procedure, and can economize in raw materials greatly, reduce production costs.
To achieve these goals, the technical solution adopted in the present invention is as follows:
Hot bending process for bending shell is characterized in that, may further comprise the steps: (1) prepares the pipe material and the blanking of corresponding specification according to the actual requirements; (2) the bend position for the treatment of of workpiece is heated, reach required angle value up to the bend position for the treatment of of workpiece; (3) workpiece is heated tempering, remove workpiece stress; (4) workpiece is carried out modified heat treatment, make its hardness reach HB277～321; (5) on lathe, workpiece is carried out fine finishining, up to shaping.
In the described step (2) workpiece is treated that the heating of bend position is to adopt heating in medium frequency coil or flame heat.
Temperature to workpiece heating tempering in the described step (3) is 300～400 ℃.
The present invention combines the hot bending process of steel pipe with mechanical processing technique, mainly by steel pipe before fine finishining, utilize heating in medium frequency or flame heat that workpiece is pre-bent to required angle, after modified heat treatment and fine finishining form.Owing to select the direct hot bending of forming tube for use, therefore not only can material-saving over half, the machined of saving the first step, and in the fine finishining process allowance along the workpiece bending direction, thereby improved the rigidity of workpiece, greatly reduce allowance.
The present invention is suitable for the processing of the curved universal drive shaft housing of various angles.
The specific embodiment
Below by giving an example the present invention is further described.
Hot bending process for bending shell may further comprise the steps: (1) prepares the pipe material and the blanking of corresponding specification according to the actual requirements; (2) adopt heating in medium frequency coil or flame heat that the bend position for the treatment of of workpiece is heated, reach required angle value up to the bend position for the treatment of of workpiece; (3) in the time of 300～400 ℃, workpiece is heated tempering, remove workpiece stress; (4) workpiece is carried out modified heat treatment, make its hardness reach HB277～321; (5) on lathe excircle of workpiece, angle of bend, two ends screw thread etc. are shaped, then whole work-piece machines.
Claims (3)
1. hot bending process for bending shell is characterized in that, may further comprise the steps:
(1) prepares the pipe material and the blanking of corresponding specification according to the actual requirements;
(2) the bend position for the treatment of of workpiece is heated, reach required angle value up to the bend position for the treatment of of workpiece;
(3) workpiece is heated tempering, remove workpiece stress;
(4) workpiece is carried out modified heat treatment, make its hardness reach HB277～321;
(5) on lathe, workpiece is carried out fine finishining, up to shaping.
2. hot bending process for bending shell according to claim 1 is characterized in that, in the described step (2) workpiece is treated that the heating of bend position is to adopt heating in medium frequency coil or flame heat.
3. hot bending process for bending shell according to claim 1 is characterized in that, the temperature to workpiece heating tempering in the described step (3) is 300～400 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910060350A CN101648234A (en) | 2009-08-17 | 2009-08-17 | Hot bending process for bending shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910060350A CN101648234A (en) | 2009-08-17 | 2009-08-17 | Hot bending process for bending shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101648234A true CN101648234A (en) | 2010-02-17 |
Family
ID=41670622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910060350A Pending CN101648234A (en) | 2009-08-17 | 2009-08-17 | Hot bending process for bending shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886400A (en) * | 2012-10-25 | 2013-01-23 | 盈都桥梁钢构工程有限公司 | Hot work bending technology for spatial hyperbolic circular tube |
| CN111496026A (en) * | 2020-04-30 | 2020-08-07 | 湖南三一快而居住宅工业有限公司 | Bar forming and processing system and control method thereof |
-
2009
- 2009-08-17 CN CN200910060350A patent/CN101648234A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886400A (en) * | 2012-10-25 | 2013-01-23 | 盈都桥梁钢构工程有限公司 | Hot work bending technology for spatial hyperbolic circular tube |
| CN111496026A (en) * | 2020-04-30 | 2020-08-07 | 湖南三一快而居住宅工业有限公司 | Bar forming and processing system and control method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100217 |