旋转速度编辑工具与聚丙烯角肩搅拌摩擦点焊连接

Semesta Teknika Pub Date : 2019-11-15 DOI:10.18196/st.222250
Aris Widyo Nugroho, M. Saputra, Cahyo Budiyantoro
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引用次数: 2

摘要

热塑性聚丙烯与搅拌摩擦点焊(FSSW)技术的连接已经得到了广泛的应用。尽管它的强度足够,但由于使用了大尺寸的soulder和pin,它仍然可以制造出一个钥匙孔和一个大的肩部ex。本研究采用FSSW技术研究了使用较小肩部和不同肩部几何形状的销的聚丙烯连接。初步研究了长150mm、宽30mm、厚5mm的聚丙烯片材切割。此连接中使用了符合EN 12814-2的骑乘连接。使用两种类型的工具(肩角0o和5o)以98516602350 rpm的转速执行连接过程。联系受到宏观结构、暴力及其引力能力的监测。研究表明,所有连接都存在振动故障。随着肩部角度和旋转速度的增加,熔核尺寸和焊接区域增加,增加的舞蹈负载能力达到2116N。几何工具2有可能应用于FSSW连接。采用搅拌摩擦点焊(FSSW)技术对热塑性聚丙烯材料进行了连接。尽管强度足够,但由于使用了较大的肩部和销尺寸,它仍然会产生较大的锁孔和肩部痕迹。本研究采用FSSW技术对聚丙烯接头进行了研究,该技术使用较小的肩部和不同肩部几何形状上的销。研究开始于将聚丙烯片材切割成150毫米长、30毫米宽和5毫米厚。在该焊接接头中使用了符合EN 12814-2的试样。焊接过程使用两种类型的工具(肩角为0°和5°)以98516602350转/分的转速进行。然后观察焊接接头的宏观结构、硬度和抗拉承载能力。结果表明,所有焊接接头都存在脆性失效。台肩角和转速的增加增加了熔核的尺寸和焊接区的厚度,从而产生了更高的拉伸承载能力,最高可达2116N。所使用的具有几何形状的工具有可能应用于FSSW接头。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pengaruh Kecepatan Putar Tool dan Sudut Shoulder Sambungan Friction Stir Spot Welding pada Bahan Polypropylene
Penyambungan bahan thermoplastic polypropilen dengan teknik Friction stir spot welding (FSSW) telah banyak dilakukan. Walaupun kekuatannya sudah mencukupi, masih dihasilkan keyhole dan bekas shoulder yang cukup besar karena penggunaan ukuran soulder dan pin besar. Penelitian ini menginvestigasi sambungan polypropilen dengan teknik FSSW menggunakan shoulder dan pin lebih kecil pada geometri shoulder yang berbeda. Penelitian di awali dengan pemotongan lembaran polypropylene dengan panjang 150mm, lebar 30mm dan tebal 5mm. Sambungan tumpang sesuai dengan standar EN 12814-2 digunakan dalam penyambungan ini. Proses penyambungan dilakukan pada kecepatan putar 985, 1660, 2350 rpm dengan dua jenis tool (shoulder angle 0o dan 5o). Sambungan diamati struktur makro, kekerasan dan kapastas beban tariknya. Hasil penelitian menunjukan bahwa semua sambungan memiliki kegagalan getas. Seiring bertambahnya sudut shoulder dan kecepatan putar tool, ukuran nugget dan welding zone meningkat, sehingga meningkatkan kapasitas beban tari mencapai 2116 N. Geometri tool 2 berpotensi untuk dapat diaplikasikan dalam sambungan FSSW. The joining of thermoplastic polypropylene material using the Friction stir spot welding (FSSW) technique has been developed. Although the strength is sufficient, it still produces a large keyhole and shoulder marks due to the use of a large shoulder and pin size. This research investigates polypropylene joint with the FSSW technique using smaller shoulders and pins on different shoulder geometries. The research began by cutting of polypropylene sheets into 150 mm long and 30 mm wide and 5 mm thick. Specimens according to EN 12814-2 were used in this welding joint. The welding process is carried out at rotational speeds of 985, 1660, 2350 rpm with two types of tools (shoulder angle of 0o and 5o). The welding joint was then observed for macrostructure, hardness, and tensile load-bearing capacity. The results showed that all welding joints had a brittle failure. The increasing of the shoulder angle and the rotational speed increase the nugget size and welding zone thickness resulting in a higher tensile load-bearing capacity which reaches up to 2116 N. The tool with the geometric being used has the potential to be applied in the FSSW joint.
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