And the simulation of welding heat cycle was validated.It shows that this virtual instrument is a reliable testing tool for measuring multipoint welding heat cycles at the same time.

• 结果表明，薄板焊接过程的数值模拟结果与实验检测结果比较吻合，验算了焊接热循环模拟计算结果的合理性，表明该虚拟仪器可以作为多点测量焊接热循环的可靠测试手段。