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Metal material and its forming method

A metal material and forming method technology, which is applied in the field of impact-resistant and wear-resistant forming metal materials and their forming, can solve the problems of casualties, mold hardness not meeting the requirements, metal material strength and impact resistance, etc., to reduce manufacturing costs , save machining time, improve the effect of wear resistance and impact resistance

Inactive Publication Date: 2011-11-30
武燕萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application range of metal materials is extremely wide. Among them, there are many metal materials used in automobile manufacturing. Automobiles have brought great convenience to people, but at the same time, they have also brought some shortcomings. Since the birth of automobiles, developers have paid attention to the speed of vehicles. and appearance, but ignores the safety hazards that cars bring to people, such as traffic accidents such as collisions, which cause damage to cars to varying degrees and casualties. Among them, the strength and impact resistance of metal materials are not enough.
Metal molds are commonly used in industry. The existing mold manufacturing method is to use CNC machine tools for processing, and it needs to go through more than ten steps such as blanking, forging, annealing, preliminary processing, finishing, quenching, tempering, grinding, and mold repairing. After the process is completed, the quenching process of the post-process requires strict requirements, and its scrap rate is also relatively large. For example, a motorcycle die-casting mold is 300,000 yuan / set, and it takes three months to manufacture. Another example is an automobile die-casting mold 1.2 million yuan / set. It takes one year to complete. If there is a problem in the final quenching process, such as the quenching temperature is not well controlled, the mold hardness cannot meet the requirements, or the quenching crack leads to scrapping, the loss will be huge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]Embodiment 1, making anti-collision, anti-collision and anti-overturn economical automobile plate or automobile cover, metal material is made up of the material of following mass percentage: 0.49% C, 0.2% Si, 0.69 Mn, 0.015% S, 0.015% P, 0.8% Cr, 0.8% W, 0.6% Ni, 0.69% Mo, 0.05% Co, 0.3% Cu, and the rest is Fe.

[0030] Forming process: 1. The above-mentioned metals are processed according to the process from the melting period to the reduction period of hypoeutectoid steel; 2. Casting at a temperature of 1550-1560 ° C; Put it into dry lime powder and cool to normal temperature; 4. Heat to 980°C to roll automobile plates, which can be continuous casting and rolling, or heat to 960°C to roll automobile panels; 5. Temper at 560°C.

Embodiment 2

[0031] Embodiment 2, making an aluminum profile extrusion die, the metal material is made up of the material of following mass percentage: 1.3 C, 0.4% Si, 1.2 Mn, 0.022% S, 0.021% P, 2.3% Cr, 2.6% W, 3.6% Ni, 1.5% Mo, 0.4% Co, 1.5% Cu, and the rest is Fe.

[0032] Forming process: 1. The above-mentioned metals are processed according to the process from the melting period to the reduction period of eutectoid steel; 2. Casting at a temperature of 1550-1560°C; 3. Metal casting for one-time molding; Cool to room temperature in lime powder or resistance furnace; 5. Temper the mold blank at 580°C to eliminate casting stress.

Embodiment 3

[0033] Embodiment 3, making anti-collision, anti-collision and anti-overturn mid-level automobile plate or automobile cover, metal material is made up of the material of following mass percentage: the C of 2.1%, the Si of 0.85%, the Mn of 3.3, the Mn of 0.05% S, 0.05% of P, 4.6% of Cr, 3.8% of W, 6% of Ni, 1.5% of Mo, 0.8% of Co, 2.8% of Cu, and the rest is Fe.

[0034] Forming process: 1. The above-mentioned metals are processed according to the process from the melting period to the reduction period of eutectoid steel; 2. Casting at a temperature of 1540-1550 ° C; Cool the lime powder to normal temperature; 4. Heating 1000℃ to roll automobile plates, which can be continuous casting and rolling, or heating 970℃ to roll automobile panels; 5. Tempering at 580℃.

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Abstract

The invention discloses a metallic material and a method for forming same. The invention solves the technical problem of enhancing the shock resistance and the abrasion resistance of the metallic material and lowering cost. The metallic material disclosed by the invention is made from the following materials in percentage by mass: 0.5-2.1% of C, 0.2-0.9% of Si, 0.69-3.3% of Mn, 0.015-0.05% of S, 0.015-0.05% of P, 0.8-4.6% of Cr, 0.6-3.8% of W, 0.6-6% of Ni, 0.69-1.5% of Mo, 0.05-0.8% of Co, 0.3-2.8% of Cu and the rest percent of Fe. Forming is casting; and demolding of the metallic material is realized by being put in heat-preserving medium or a heat-preserving box body for cooling to room temperature and annealing. Compared with the prior art, the metallic material is once formed by casting without quenching or nitriding, thus the shock resistance and the abrasion resistance of the metallic material are enhanced, the time for mechanically machining of metallic parts or dies is saved and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to a metal material and a forming method thereof, in particular to an impact-resistant and wear-resistant forming metal material and a forming method thereof. Background technique [0002] The application range of metal materials is extremely wide. Among them, there are many metal materials used in automobile manufacturing. Automobiles have brought great convenience to people, but at the same time, they have also brought some shortcomings. Since the birth of automobiles, developers have paid attention to the speed of vehicles. However, it ignores the safety hazards that cars bring to people, such as traffic accidents such as collisions, which cause damage to cars to varying degrees and casualties. Among them, the strength and impact resistance of metal materials are not enough. Metal molds are commonly used in industry. The existing mold manufacturing method is to use CNC machine tools for processing, and it needs to go through mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/52C22C38/58C22C38/56C22C38/50
Inventor 罗明科
Owner 武燕萍
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