中国有色金属学报(英文版)
中國有色金屬學報(英文版)
중국유색금속학보(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2015年
6期
1787-1793
,共7页
铝合金%搅拌头形状%拉伸试验%成形性%显微组织
鋁閤金%攪拌頭形狀%拉伸試驗%成形性%顯微組織
려합금%교반두형상%랍신시험%성형성%현미조직
aluminium alloys%tool pin profile%tensile testing%formability%microstructure
研究采用5种形状搅拌头搅拌摩擦焊接拼焊板。在相同搅拌摩擦焊工艺参数下研究了拼焊板的成形性。研究结果表明,与其他形状搅拌头相比,方形搅拌头制备的拼焊板具有更好的成形性,这是由于方形搅拌头具有搏动效应。显微组织研究表明,与方形搅拌头相比,锥形和阶梯圆柱状搅拌头焊接板材的搅拌区组织更不均匀,导致成形性较差。方形搅拌头的极限顶高为14 mm,而锥形和阶梯圆柱状搅拌的极限顶高分别为12.5 mm和12.4 mm。
研究採用5種形狀攪拌頭攪拌摩抆銲接拼銲闆。在相同攪拌摩抆銲工藝參數下研究瞭拼銲闆的成形性。研究結果錶明,與其他形狀攪拌頭相比,方形攪拌頭製備的拼銲闆具有更好的成形性,這是由于方形攪拌頭具有搏動效應。顯微組織研究錶明,與方形攪拌頭相比,錐形和階梯圓柱狀攪拌頭銲接闆材的攪拌區組織更不均勻,導緻成形性較差。方形攪拌頭的極限頂高為14 mm,而錐形和階梯圓柱狀攪拌的極限頂高分彆為12.5 mm和12.4 mm。
연구채용5충형상교반두교반마찰한접병한판。재상동교반마찰한공예삼수하연구료병한판적성형성。연구결과표명,여기타형상교반두상비,방형교반두제비적병한판구유경호적성형성,저시유우방형교반두구유박동효응。현미조직연구표명,여방형교반두상비,추형화계제원주상교반두한접판재적교반구조직경불균균,도치성형성교차。방형교반두적겁한정고위14 mm,이추형화계제원주상교반적겁한정고분별위12.5 mm화12.4 mm。
An attempt has been made to study the tailor welded blanks (TWBs) made by friction stir welding (FSW) with five different tool pin profiles. The formability of welded blanks was evaluated at constant FSW process parameters. It has been found that the welded blanks with square pin profile tool produced better formability properties as compared to other tool pin profiles. It was found that the pulsating action of the square pin profile is said to be the reason for this improvement. A microstructural evaluation performed on the blanks revealed that the stir zone created by taper cylindrical and stepped cylindrical tools was less homogeneous than that of the square tool, resulting in less formability. The limiting dome height (LDH) of square pin profile tool was found to be 14 mm while those of taper cylindrical and stepped cylindrical tools are 12.5 mm and 12.4 mm, respectively.