Optimization and control of drilling burr formation of AISI 304L and AISI 4118 based on drilling burr control charts

Control charts for drilling burr formation for stainless, AISI 304L, and lo w alloy steel, AISI 4118, were developed, Split Feint twist drills are used for the experiments of this work. A Drilling Burr Control Chart, based on experimental data, is a tool for prediction and control of drilling burrs, Burr classification was carried out based on the geometric characteristics. burr formation mechanisms and sizes of the burrs. New parameters consistin g of cutting condition variables and drill diameter were developed, and use d to show unique distributions of the burr types. Burr types and the result ant bur size showed great dependence on the new parameters regardless of th e drill diameters. Through the chart, burr type can be predicted with given cutting conditions. Also cutting conditions that are believed to create pr eferred burr types can be selected. (C) 2001 Elsevier Science Ltd. All righ ts reserved.