Manufacturing method of high-precision longitudinal shearing disc cutter

A manufacturing method and disc cutter technology, which is applied in the field of tool processing, can solve the problems of short life, poor toughness, and the inability of the abrasive composition to meet the requirements of flatness and high precision, and achieve the effect of avoiding scratches and good finish

Inactive Publication Date: 2018-11-13
ANHUI RISHENG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a manufacturing method of a high-precision slitting disc cutter, which solves the problem that the existing slitting disc blades have short service life, poor toughness, and the grinding composition cannot meet the requirements of high flatness. The problem of precision requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment one: a kind of manufacturing method of high-precision slitting disc cutter, comprises the following steps:

[0035] Step 1. Material selection. Alloy structural steel forgings are selected as the material of the slitting disc cutter. First, the rectangular blank is cut into a rectangular blank with a length of 230mm and a width of 230mm, and then the cut rectangular blank is placed in a heating furnace and heated to 1250°C. The heating rate is 12-16°C / min. After the temperature rises to 1250°C, it is kept for 110-130 minutes. After the heat preservation is completed, it is forged out of the furnace and forged into a forged blank with a thickness of 11mm, a length of 230mm, and a width of 230mm. The weight of each component of the blank The percentages are: C: 1.45%, Si: 0.40%, Mn: 0.15%, S: 0.030%, P: 0.030%, Cr: 3.80%, Ni: 0.30%, V: 1.75%, Mo: 4.50%, W: 5.50%, the rest is Fe and unavoidable impurities.

[0036] Step 2. Annealing treatment of the forged blan...

Embodiment example 2

[0056] A method for manufacturing a high-precision slitting disc cutter, comprising the following steps:

[0057] Step 1. Material selection. Alloy structural steel forgings are selected as the material of the slitting disc cutter. First, the rectangular blank is cut into a rectangular blank with a length of 230mm and a width of 230mm, and then the cut rectangular blank is placed in a heating furnace and heated to 1250°C. The heating rate is 12-16°C / min. After the temperature rises to 1250°C, it is kept for 110-130 minutes. After the heat preservation is completed, it is forged out of the furnace and forged into a forged blank with a thickness of 11mm, a length of 230mm, and a width of 230mm. The weight of each component of the blank The percentages are: C: 1.60%, Si: 0.20%, Mn: 0.30%, S: 0.020%, P: 0.020%, Cr: 4.20%, Ni: 0.10%, V: 2.10%, Mo: 5.00%, W: 6.15%, the rest is Fe and unavoidable impurities.

[0058] Step 2. Annealing treatment of the forged blank: put the forged bl...

Embodiment example 3

[0077] Implementation Case 3: A manufacturing method of high-precision slitting disc cutters, comprising the following steps:

[0078] Step 1. Material selection. Alloy structural steel forgings are selected as the material of the slitting disc cutter. First, the rectangular blank is cut into a rectangular blank with a length of 230mm and a width of 230mm, and then the cut rectangular blank is placed in a heating furnace and heated to 1250°C. The heating rate is 12-16°C / min. After the temperature rises to 1250°C, it is kept for 110-130 minutes. After the heat preservation is completed, it is forged out of the furnace and forged into a forged blank with a thickness of 11mm, a length of 230mm, and a width of 230mm. The weight of each component of the blank The percentages are: C: 1.70%, Si: 0.40%, Mn: 0.40%, S: 0.030%, P: 0.030%, Cr: 4.40%, Ni: 0.30%, V: 2.20%, Mo: 5.50%, W: 6.75%, the rest is Fe and unavoidable impurities.

[0079]Step 2. Annealing treatment of the forged blan...

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Abstract

The invention discloses a manufacturing method of a high-precision longitudinal shearing disc cutter, and relates to the technical field of cutter machining. The manufacturing method comprises the following steps that firstly, material selecting is conducted, and an alloy structure steel forge piece is selected as the material of the longitudinal shearing disc cutter; secondly, forge blank annealing treatment is conducted; thirdly, rough machining of the longitudinal shearing disc cutter is conducted; fourthly, heat treatment of the longitudinal shearing disc cutter is conducted; and fifthly,finish machining of the longitudinal shearing disc cutter is conducted. A grinding material used in third-time fine grinding in the fifth step is composed of green silicon carbide micro powder, kerosene and machine oil. During third-time fine grinding in the fifth step, the rotation speed of a grinding disc of a grinding machine is controlled to be 10 r / min, and the down force of the grinding discis controlled to be 980 N. According to the manufacturing method of the high-precision longitudinal shearing disc cutter, high hardness, high abrasion resistance, high heat hardness, high hardenability and enough plasticity and tenacity are achieved, and the service life of the longitudinal shearing disc cutter is greatly prolonged; and meanwhile, the grinding material composed of the green silicon carbide micro powder, the kerosene and the machine oil is adopted, smooth finish after grinding is good, and scratches can be prevented from being generated in the machining process.

Description

technical field [0001] The invention relates to the technical field of cutter processing, in particular to a manufacturing method of a high-precision slitting disc cutter. Background technique [0002] The sheet metal slitting machine relies on the slitting disc blade to roll on the sheet to complete the infinitely long shearing action of the sheet. The sheet metal slitting machine is used for longitudinal rolling shearing of ordinary metal sheets, aluminum sheets, stainless steel sheets, silicon steel sheets, etc. Slitting disc blades are widely used in aerospace, automobile manufacturing, mining machinery, hardware manufacturing, home appliances and other industries. The slitting disc blades for cutting metal sheets have great influence on the material selection, heat treatment process of the blade itself, and the wear resistance and resistance of the blade. The impact has extremely high requirements. At present, most cutting tool manufacturers choose an alloy tool steel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/28
Inventor 刘云飞甘文花
Owner ANHUI RISHENG MACHINERY MFG
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