【摘要】 针对传统铝箔切割设备中因切割力过大，导致刀具寿命短的问题，设计了一种铝箔滚切机，对滚切刀具进行结构设计和参数优化，以减小切割力，延长刀具使用寿命。基于刀具与铝箔材料之间的接触力学关系，采用有限元仿真软件LS-DYNA和响应面法（RSM）对切割力的影响因素进行仿真分析；研究刀刃角度、刀刃厚度和滚刀转速3个因素对切割力的交互作用，并构建以切割力为响应变量的多元回归预测模型。结果表明，3个因素对切割力的影响程度依次为刀刃角度>刀刃厚度>滚刀转速；以最小切割力为目标，获得最优参数组合为刀刃角度15°、刀刃厚度1.5 mm、滚刀转速70 r/min，优化后试验得到平均切割力为259.10 N，与预测值的平均相对误差为5.73%。研究为提升铝箔切割设备的加工性能和刀具的使用寿命提供理论依据。更多还原

【Abstract】 To address the issue of short tool life caused by excessive cutting force in traditional aluminum foil cutting equipment,a rotary aluminum foil cutting machine was designed.Structural design and parameter optimization of the rotary cutter were conducted to reduce cutting force and extend tool service life.Based on the contact mechanics relationship between the tool and aluminum foil material,the influencing factors of cutting force were simulated and analyzed using the finite element software LS DYNA and response surface methodology RSM.The interaction of three factors including blade angle,blade thickness,and rotary cutter speed on cutting force was investigated,and a multivariate regression prediction model with cutting force as the response variable was established.Results showed that the order of influence of the three factors on cutting force was blade angle greater than rotary cutter speed greater than blade thickness.With the goal of minimizing cutting force,the optimal parameter combination was determined as blade angle 15 degrees,blade thickness 1.5 mm,and rotary cutter speed 70 r/min.Experimental validation under these optimized conditions yielded an average cutting force of 259.10 N,with a mean relative error of 5.73 percent compared to the predicted value.This study provides a theoretical basis for improving the processing performance of aluminum foil cutting equipment and extending tool service life.更多还原