Controlling mechanical loads in milling operations

Introduction

This is the second article in a series examining the nature, effects and control of loads that affect metal cutting tools. The initial article focused on basic concepts and on the relationship between tool geometry, feed rates and mechanical loads in turning operations. This article analyses the influence of cutter positioning and tool paths on mechanical loads in milling. While turning generates steady mechanical loads on a single-edge tool, milling subjects multiple cutting edges to rapidly changing intermittent loads. As such, attaining success in milling requires a number of milling-specific choices and considerations.