Using recycled bismuth-tin solder in novel machinable lead-free brass

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Rojananan S., Suksongkarm P., Rojananan S.

ผู้เผยแพร่: Nihon Kinzoku Gakkai (日本金属学会)

ปีที่เผยแพร่ (ค.ศ.): 2017

วารสาร: Materials Transactions (1345-9678)

Volume number: 58

Issue number: 12

หน้าแรก: 1754

หน้าสุดท้าย: 1760

จำนวนหน้า: 7

นอก: 1345-9678

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035092241&doi=10.2320%2fmatertrans.M2017227&partnerID=40&md5=aa035f42c7ee9ba951bf0aead2a41e8a

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The aim of this work was to create and apply a recycled bismuth-tin (Bi-Sn) solder in novel machinable lead-free brass. The Bi-Sn alloys were obtained from a recycled solder used in the electronics industry to reduce cost and to partially solve electronic waste issue. The relationship between mechanical properties, microstructures and machinability of the brass were investigated. The results showed that a based lead-free Cu-38Zn-0.5Si brass without Bi-Sn alloy addition exhibited highest tensile strength, required the highest machining force and produced an undesirable long continuous chip type. An addition of 1-3 mass% Bi-Sn alloy resulted in significant decrease of both the tensile strength and the machining force. The chip formation changed from an undesirable long continuous chip to a discontinuous chip in moderate size. On the other hand, the addition of 4 and 5 mass% Bi-Sn alloy slightly increased the tensile strength and the machining force, the chip formation changed from a moderate chip size to a very short chip under every test condition. The lead-free brass with 3 mass% Bi-Sn alloy showed the best effective machinability as it required the lowest machining force and produced a short chip. Furthermore, the mechanical properties were about the same as those of the commercial EnviroBrassฎIII. Thus, the recycled Bi-Sn alloy can be used to improve the machining properties of lead-free brass and offers a possibility for new and better lead-free brass alloys. ฉ 2017 The Japan Society for Technology of Plasticity.

คำสำคัญ

Bismuth-tin solder, Chip formation, Lead-free brass, Machinability, Machining force