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Aluminum alloy for cutting processing, and aluminum alloy worked article made of the same

Inactive Publication Date: 2006-05-25
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021] According to the aluminum alloy for cutting processing as recited in the aforementioned Item (1), excellent cutting processability, mechanical characteristics and coating processability can be obtained without adding Pb. Furthermore, the aluminum alloy causes less abrasion and / or damage on a cutting tool.
[0031] According to the aluminum alloy worked article as recited in the aforementioned Item (11), the article is excellent in surface quality because of the excellent cutting processability of the material.

Problems solved by technology

However, since enough cutting processability cannot be obtained by the aforementioned non-Pb-containing aluminum alloys, further improvement is expected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples

[Test A]

[0050] Aluminum alloys having compositions Nos. A1 to A30 shown in Table 1 were prepared. The alloy Nos. A1 to A21 according to the compositions of the present invention includes Cu, Zn, Bi, Sn, B and the balance being Al and impurities. The alloy Nos. A22 to A30 are comparative compositions.

[0051] The aluminum alloys Nos. A1 to A30 shown in Table 1 were used as casting materials, and extruding billets each having a diameter of 200 mm were cast by a common procedure and then subjected to a homogenizing treatment. Thereafter, the billets were extruded into bars each having a diameter of 30 mm. Subsequently, these bars were subjected to a solution treatment for 5 hours at 495° C., and then subjected to water quenching. Then, these bars were drawn into 25 mm in diameter to there by obtain T3 processed materials. Further, the obtained materials were subjected to artificial ageing processing for 14 hours at 130° C. to thereby obtain T8 processed materials. These T8 processed ma...

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PUM

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Abstract

An aluminum alloy for cutting processing consists essentially of Cu: 1 to 6.5 mass %, Zn: 0.05 to 1 mass %, Bi: 0.1 to 1 mass %, Sn: 0.1 to 1 mass %, B: 100 mass ppm or less, or further includes at least one element as a selective additional element selected from the group consisting of Fe: 0.05 to 1 mass %, Mg: 0.01 to 0.3 mass %, Si: 0.05 to 1 mass % and Ti: 0.01 to 0.5 mass %.

Description

[0001] Priority is claimed to Japanese Patent Application No. 2002-296268, filed on Oct. 9, 2002, and U.S. Provisional Application No. 60 / 483,635, filed on Jul. 1, 2003, the disclosure of which are incorporated by reference in their entireties. CROSS REFERENCE TO RELATED APPLICATIONS [0002] This application is an application filed under 35 U.S.C. § 111(a) claiming the benefit pursuant to 35 U.S.C. §119(e)(1) of the filing date of U.S. Provisional Application No. 60 / 483,635, filed on Jul. 1, 2003, pursuant to 35 U.S.C. §111(b).TECHNICAL FIELD [0003] The present invention relates to an aluminum alloy for cutting processing containing no Pb, and also related to an aluminum alloy worked article made of the aforementioned aluminum alloy. BACKGROUND ART [0004] In cutting processing of aluminum alloy materials, a step of disposing chips is required since continuous chips are generated during the cutting processing. Also required is a step of eliminating burrs which generate at corner porti...

Claims

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Application Information

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IPC IPC(8): C22C21/12C22C21/16C22C21/18
CPCC22C21/003C22C21/16C22C21/18
Inventor YOSHIOKA, HIROKIYAMANAKA, MASAKIMATSUOKA, HIDEAKI
Owner SHOWA DENKO KK
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