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Aluminium alloy easy to be cut at high speed and its prepn

An aluminum alloy and easy-cutting technology, which is applied in the field of high-speed and easy-cut aluminum alloy materials, can solve the problems of insufficient cutting performance and sticking of the knife, and achieve the effects of convenient tapping, convenient chip breaking, and improved cutting performance

Inactive Publication Date: 2006-05-17
卫品官
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with general aluminum alloys, these aluminum alloys have improved cutting performance, but in terms of high-speed cutting and mass-processing parts, their cutting performance is not enough, and the most obvious disadvantage is the sticking phenomenon.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Melting: Heat 100kg of 2xxx series aluminum alloy raw materials to 780-800°C, add 2kg of iron, stir evenly, then add 1kg of lead, stir evenly;

[0029] (2) Billet: 10 minutes after adding lead, cast at a pouring temperature of 740-760°C to make an extrusion billet or a rolled billet;

[0030] (3) Extrusion or roll forming: Extrusion or roll forming according to the shape of the prefabricated part;

[0031] (4) Heat treatment: The material formed in step (3) is subjected to T3 heat treatment to obtain the high-speed free-cutting aluminum alloy of the present invention.

Embodiment 2

[0033] (1) Smelting: Heat 100kg of 6xxx series aluminum alloy raw materials to 780-800°C, add 2kg of iron, stir evenly, then add 1kg of bismuth, stir evenly;

[0034] (2) Billet: 10 minutes after adding lead, cast at a pouring temperature of 740-760°C to make an extrusion billet or a rolled billet;

[0035] (3) Extrusion or roll forming: Extrusion or roll forming according to the shape of the prefabricated part;

[0036] (4) Heat treatment: The material formed in step (3) is subjected to T5 heat treatment to obtain the high-speed free-cutting aluminum alloy of the present invention.

Embodiment 3

[0038] (1) Melting: Heat 100kg of 4xxx series aluminum alloy raw materials to 780-800°C, add 2kg of iron, stir evenly, then add 1kg of lead and 1kg of bismuth, and stir evenly;

[0039] (2) Billet: 10 minutes after adding lead, cast at a pouring temperature of 740-760°C to make an extrusion billet or a rolled billet;

[0040] (3) Extrusion or roll forming: Extrusion or roll forming according to the shape of the prefabricated part:

[0041] (4) Heat treatment: The material formed in step (3) is subjected to T6 heat treatment to obtain the high-speed free-cutting aluminum alloy of the present invention.

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Abstract

The present invention is aluminum alloy easy to be cut at high speed and its preparation, and belongs to the field of aluminum alloy material. The aluminum alloy easy to be cut at high speed has Fe 0.7-7.0 wt% and Bi 0.2-5.0 wt%, or Fe 0.7-7.0 wt% and Pb 0.2-5.0 wt%, or Fe 0.9-7.0 wt%, Bi 0.2-5.0 wt% and Pb 0.2-5.0 wt% added. It has excellent cutting performance and high cutting efficiency.

Description

technical field [0001] The invention relates to an aluminum alloy material and a preparation method thereof, more specifically, the invention relates to an aluminum alloy material suitable for high-speed easy cutting. Background technique [0002] At present, the known free-cutting aluminum alloys are all foreign brands, such as: 2011, 2005, 2007, 6262, 4104, etc. Compared with general aluminum alloys, these aluminum alloys have improved cutting performance, but in terms of high-speed cutting and mass processing of parts, their cutting performance is not enough, and the most obvious disadvantage is the sticking phenomenon. In order to improve the efficiency of machining parts, this shortcoming must be overcome. On the other hand, the alloy with the best cutting performance is free-cutting lead brass, so many hardware parts are processed with free-cutting lead brass. Also process the base of the lighter, per minute: 20 pieces can be processed for 2011 aluminum alloy, and 35...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02
Inventor 卫品官
Owner 卫品官
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