A new method to evaluate the machinability of difficult-to-cut materials

Machinability is a measure of ease with which a work material can be machined, and it is important in process planning and machining operations. Experiments of face milling four kinds of wrought superalloys were conducted at various cutting speeds from 30 to 90 m/min using coated cemented carbide tools. The tool life and tool failure modes were discussed, and two concepts of the cutting speed sensitivity and the critical speed at which the tool failure mode changes were presented. And then a new method to evaluate the machinability of difficult-to-cut materials was proposed. Based on this method, the machinability of the four kinds of superalloys was evaluated, and they could be ranked in such an order as GH605 < GH4169 < GH4033 < GH2132.

[1]  Ming Chen,et al.  Experiment Study on Machinability of Six Kinds of Wrought Nickel-Based Superalloys , 2006 .

[2]  Slavko Dolinsek,et al.  Machinability of 90MnCrV8 steel during high-speed machining , 2005 .

[3]  Masafumi Kikuchi,et al.  Machinability evaluation of titanium alloys. , 2004, Dental materials journal.

[4]  P. Arrazola,et al.  Machinability of titanium alloys (Ti6Al4V and Ti555.3) , 2009 .

[5]  B. Ramamoorthy,et al.  Machinability investigation of Inconel 718 in high-speed turning , 2009 .

[6]  R. Venkata Rao,et al.  Machinability evaluation of work materials using a combined multiple attribute decision-making method , 2006 .

[7]  O. P. Gandhi,et al.  Digraph and matrix methods for the machinability evaluation of work materials , 2002 .

[8]  J. Horng,et al.  Investigating the machinability evaluation of Hadfield steel in the hard turning with Al2O3/TiC mixed ceramic tool based on the response surface methodology , 2008 .

[9]  Wang Min.  Determining the Influence of Property Parameters on Metal Machinability via Analytical Grey Incidence Process , 2006 .

[10]  P. Krakhmalev,et al.  Influence of nickel content on machinability of a hot-work tool steel in prehardened condition , 2011 .

[11]  Masafumi Kikuchi,et al.  Machinability evaluation of titanium alloys (Part 2)--Analyses of cutting force and spindle motor current. , 2004, Dental materials journal.

[12]  S. Enache,et al.  Mathematical Model for the Establishment of the Materials Machinability , 1995 .

[13]  W. König,et al.  Machining and Machinability of Aluminium Cast Alloys , 1983 .

[14]  J. Paulo Davim,et al.  Machinability evaluation in hard turning of cold work tool steel (D2) with ceramic tools using statistical techniques , 2007 .