摘要:
Disclosed is a welding method of carrying out an alternating current arc welding by switching polarities of a voltage applied between a wire 7 and workpieces when weld-connecting the workpieces to each other by use of the wire 7, the workpieces including an aluminum cast material 1 and an aluminum wrought material 3. In the welding method, the alternating current arc welding is carried out in a way to satisfy |B|/(A+|B|)≧0.128 where A denotes an integrated value of an electric current over a time for which the polarity of the wire 7 is positive, and B denotes an integrated value of an electric current over a time for which the polarity of the wire 7 is negative; and thereby an amount of heat input into the aluminum cast material 1 during the welding is set at not more than 67.8 J/mm2.
摘要翻译:公开了一种焊接方法,其通过使用线7将工件彼此焊接连接,通过切换电线7和工件之间施加的电压的极性来进行交流电弧焊接,工件包括铝铸造材料1 和铝锻造材料3.在焊接方法中,交流电弧焊接以满足<?in-line-formula description =“In-line Formulas”end =“lead”→> | B | /(A+|B|)>=0.128其中A表示电流在一段时间内的积分值, 线7为正,B为电线7的极性为负的时间的电流的积分值。 因此在焊接期间输入到铝铸造材料1中的热量设定为不大于67.8J / mm 2。
摘要:
A welding method of carrying out an alternating current arc welding by switching polarities of a voltage applied between a wire and workpieces when weld-connecting the workpieces to each other by use of the wire, the workpieces including an aluminum cast material and an aluminum wrought material. In the welding method, the alternating current arc welding is carried out in a way to satisfy |B|/(A+|B|)≧0.128 where A denotes an integrated value of an electric current over a time for which the polarity of the wire is positive, and B denotes an integrated value of an electric current over a time for which the polarity of the wire is negative; and thereby an amount of heat input into the aluminum cast material during the welding is set at not more than 67.8 J/mm2.
摘要翻译:一种焊接方法,当通过使用所述线将工件彼此焊接连接时,通过切换在线材和工件之间施加的电压的极性来进行交流电弧焊接,所述工件包括铝铸造材料和铝锻造材料 。 在焊接方法中,以满足| B | /(A + | B |)≥0.128的方式进行交流电弧焊接,其中A表示电线极性的电流的积分值, 是正的,B表示电线的极性为负的时间的电流的积分值; 因此在焊接期间输入到铝铸造材料中的热量设定为不大于67.8J / mm 2。
摘要:
The torsion beam for a suspension is formed of a hollow shaft having a cross section substantially of the shape of an inverted letter U. It, therefore, can be manufactured simply and is enabled to enjoy light weight and improved torsional rigidity. This torsional rigidity can be adjusted and the amount of offset of the joined parts of opposite wheel supporting members from the other component parts can be freely adjusted. The end plates are constructed of a plurality of mutually joined end plates and the torsion beam is joined by welding to the surface for mounting the beam after the end plates have been machined. Thus, the torsion beam type suspension is manufactured with a relatively simple equipment, with the result that cost of equipment and the cost of production are lowered. The torsion beam can be manufactured with increased simplicity by subjecting a flat plate to the steps for swelling, folding and joining opposed of the flat plate or superposing a first and a second plate severally formed in a structure having a cross section substantially of the shape of an inverted letter U.