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A Machining Technology of Working Surface of Open Cavity Forging Die

A processing technology and working face technology, which is applied in the processing technology field of the working face of an open cavity forging die, can solve the problems of easy damage and low service life of the forging die, avoid collapse, improve the service life and increase the supporting effect. Effect

Active Publication Date: 2021-08-27
MAANSHAN CITY ZHONGYE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art that the forging die is easily damaged during use and has a low service life, and provides a processing technology for the working surface of the open cavity forging die, through the whole process control of the processing technology, especially The well-shaped surfacing welding unit is used for grid surfacing welding in the transition arc section, and the grid surfacing welding unit is used for the middle arc section and the end arc section, which can improve the performance of the forging die and increase the service life of the forging die

Method used

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  • A Machining Technology of Working Surface of Open Cavity Forging Die
  • A Machining Technology of Working Surface of Open Cavity Forging Die
  • A Machining Technology of Working Surface of Open Cavity Forging Die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Combine figure 1 , figure 2 , image 3 , Figure 4 with Image 6 As shown, the processing process of an open type cavity molding surface of the present invention is as follows:

[0054] Step 1: Mechanical processing

[0055] The cavity is milled in the forging die substrate 100, the cavity includes a central type cavity surface 110, a transition type cavity surface 120, and an end type cavity surface 130, and a central type cavity surface 110, a transition type cavity surface 120, and an end type. The cavity surface 130 is a circular arc surface; the central type cavity surface 110 is located in the middle of the wound substrate 100, and the transition type cavity surface 120 and the end type cavity surface 130 are on the same plane, i.e., transitional cavity surface 120 and The end type cavity surface 130 is coplanar; and the central type cavity surface 110 protrudes in the plane of the transition type cavity surface 120 and the end type cavity surface 130. That is, the trans...

Embodiment 2

[0093] The basic content of the present embodiment is the same as in Example 1.

[0094] (1) DC welder is used in the process of soldering and bottoming layer 211, the solder material employed by the bottom layer 211 is H13 welding material, and the H13 welding material alloy component is: C: 0.35%, Si: 1%, MN: 0.3%, Cr: 5%, MO: 1.5%, V: 1%, the bottom layer 211 thickness of the transition circular arc 222 gradually increases from the central arc section 221 to the end circular arc segment 223, that is, the transition circular arc 222 The thickness of the bottom layer 211 is larger than the thickness of the central arc segment 221 is larger than the thickness of the end circular arc segment 223, thereby enhancing the stability of the bottom layer 211, preventing the bottom layer 211 from being cracking in a portion of the shelf layer 211 and the forging die substrate 100;

[0095] (2) In the process of the deposit transition layer 212, a gas protective welding is used, and the wel...

Embodiment 3

[0098] The basic content of the present embodiment is the same as in Example 1.

[0099] The transition layer 212 is welded on the bottom layer 211 of the transition circular arc segment 222 in step (1-2), and the transition layer 212 of the transition circular arc segment 222 is formed; the method in which the method in step 1-2 is used in the transition arc. The transition layer 212 of the segment 222 is soldered the working layer 213 to form the working layer 213 of the transition arc segment 222; that is, the bottom layer 211 of the transition arc segment 222 is welded to welding, and the transition arc The transition layer 212 and the working layer 213 of the segment 222 are soldered by grid rending unit 320.

[0100] The bottom layer 211 of the transition arc segment 222 is supplied with a well-formed binder 310, and the thickness of the bottom layer 211 of the transition arc segment 222 is gradually increased by the central circular arc section 221 to the end arc section 22...

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Abstract

The invention discloses a processing technology for the working surface of an open-cavity forging die, which belongs to the field of processing heavy-duty shaft forging dies. The specific steps of the present invention are: Step 1: machining, milling out a cavity on the base material of the forging die; Step 2: heat treatment before welding, performing heat treatment on the base material of the forging die after machining; Step 3: surfacing welding on the working surface, The transitional arc section of the forging die working face is surfacing with well-shaped surfacing welding units, and the middle arc section and end arc section of the forging die working face are surfacing welding with grid surfacing welding units; Step 4: Post-weld heat treatment , heat-treating the forging die on the working face of the forging die after surfacing; Step 5: CNC machining and grinding, processing the forging die cavity to remove excess welding material on the surface after welding, and grinding and finishing the working face. The invention improves the performance of the forging die, improves the service life of the forging die, and the thickness of the working surface of the forging die in the transition arc section gradually increases from the end arc section to the middle arc section, thereby avoiding the collapse of the transition arc section.

Description

Technical field [0001] The present invention relates to the field of heavy-duty shaft, and more particularly to a processing process of an open type cavity surface. Background technique [0002] The railway transportation industry is a key industry in which the national support and development is related to the space and scope of my country's market development. Therefore, it is necessary to highly attach great importance to the development of the railway transportation industry, the axle is an important part of the railway vehicle vehicle walking department, and the quality of the quality will directly affect the safety of railway transportation. With the continuous advancement of modern society, the transportation industry is constantly evolving, and further improves the vehicle load and use reliability requirements, urgent need to improve the intensity of the axle, enhance the service life of the axle, and increase locations Safety. [0003] Forging is one of the main methods ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
CPCB23P15/24
Inventor 陶金顺陶竹林陶水灵
Owner MAANSHAN CITY ZHONGYE MACHINERY
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