通过对硬质合金、截齿体材质、焊缝间隙、钎焊及热处理工艺的研究，寻找出了研制优质强力截齿的技术途径。
The technology of developing quality and strong pick is found by researching the hard metal alloy, pick-body material, weld gap, technique of braze welding and heat treatment.
通过极限拉伸比试验，研究了轧制、退火、拉伸温度、拉伸速度、拉延间隙以及压边力等工艺因素对镁合金板材成形性能的影响。
Through the limiting drawing ratio tests, the influences of rolling, annealing, blank holder force, drawing gap, drawing temperature and speed on the forming performance were investigated.
运用弹塑性有限元法，研究了胶粘剂弹性模量对含间隙的铝合金单搭接接头上应力分布的影响。
The effect of elastic modulus of adhesive on the str ess distribution in aluminium alloy single lap joint was investigated using elastic-plastic finite element method(FEM).
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