【摘要】 首先给出传统拉刀制造工艺对应的数学模型，分析了竞争力不强的原因，进而给出了修正方案，并用齿形和螺旋角各不相同的硬质合金拉刀算例验证了修正后的制造模型的可靠和方案的可行。更多还原

【Abstract】 Frstly,the essay is shown the popular manufacture technology of the broach and its correspondant mathematical model.and analese the reason to cause lower-quality Secondly,it proposes the modified plan.Finally,it calculates different tooth profile and spiral angles in order to examine the feasibility of the improved plan and reliability of its correspondant model.更多还原