Effects of Toolpath Parameters on Engagement Angle and Cutting Force in Ellipse-Based Trochoidal Milling of Titanium Alloy Ti-6Al-4V

Trochoidal milling is an efficient strategy for the rough machining of difficult-to-cut materials. The true trochoidal toolpath has C2 continuity and avoids sharp changes in engagement angle cutting load, resulting smooth machine tool movement. However, its total length too long, uneven. These factors limit further improvements material removal rate. Based on model, this paper develops ellipse-based generation method by introducing a compression ratio step direction. analytical model mechanistic force are proposed. A series simulations experiments were conducted to analyze effects parameters force. results show that most significant effects. 50% optimal, using which reduced 34.0%, variance 31.2% compared with toolpath. profile corresponds angle.