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Frontiers of Mechanical Engineering

ISSN 2095-0233

ISSN 2095-0241(Online)

CN 11-5984/TH

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Front Mech Eng Chin    2009, Vol. 4 Issue (1) : 83-87    https://doi.org/10.1007/s11465-009-0014-0
RESEARCH ARTICLE
Case modifying of high-speed cutting database based on CSP and similarity theory
Kejun XIANG(), Zhanqiang LIU, Xing AI
Information Management College, Shandong Economic University, Jinan 250014, China
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Abstract

By analyzing the reasoning of a high-speed cutting database system, a case modifying method is put forward. According to the variables’ difference of the solution part in a case, a constraint satisfaction problem (CSP) and similarity calculation are used to modify a case. The constraint relationship of discrete variables is described by establishing a rule knowledge base. The algorithm of CSP is used to solve the discrete variable constraint problem. On the basis of the high-speed cutting theory, a similarity calculation formula is deduced to calculate the consecutive variables. The CSP and similarity calculation are applied to case modifying, which is possible to automatically modify cases in the high-speed cutting database system.
Keywords high-speed cutting database      case modifying      CSP      similarity calculation     
Corresponding Author(s): XIANG Kejun,Email:xiangkejun@163.com   
Issue Date: 05 March 2009
 Cite this article:   
Kejun XIANG,Zhanqiang LIU,Xing AI. Case modifying of high-speed cutting database based on CSP and similarity theory[J]. Front Mech Eng Chin, 2009, 4(1): 83-87.
 URL:  
https://academic.hep.com.cn/fme/EN/10.1007/s11465-009-0014-0
https://academic.hep.com.cn/fme/EN/Y2009/V4/I1/83
Fig.1  Combination of CBR and RBR in high-speed cutting database system
workpiece materialmachining precisioncutting tool material
aluminium alloyfine finishPCD
aluminium alloysemi-finishcoated carbide
aluminium alloyrough-machiningcoated carbide
hardened steelsemi-finishPCBN
steelsemi-finishcoated carbide
super alloysemi-finishSi3N4 based ceramic
cast ironsemi-finishAl2O3 based ceramic
steelfine finishcarbide
cast ironfine finishcarbide
cast ironrough-machiningcoated carbide
steelrough-machiningcoated carbide
titaniumfine finishPCD
titaniumsemi-finishcoated carbide
Tab.1  Rule-knowledge base of workpiece material,machining precision—cutting tool material []
workpiece materialcutting tool materialmachining precisioncutting fluid
cast ironmay not be used
carbidegenerally not in use
ceramic cutting tool generally not in use
copper and copper alloycannot use sulphur content cutting fluid
aluminum and aluminum alloyshould not use water solution and sulfuration cutting oil, and chloric cutting fluid
magnesium alloyshould not use water solution and emulsion; generally use mineral oil
high-strength steelextreme pressure cutting oil, extreme pressure emulsion
superalloyextreme pressure cutting oil, extreme pressure emulsion
rough machiningwater
finish machiningemulsion
Tab.2  Rule-knowledge base of workpiece material, cutting tool material, machining type—cutting fluid []
cutting tool materialmachining precisionrake angle /(°)clearance angle /(°)
PCBNfinish machining1010
PCBNrough machining-55
ceramicfinish machining55
ceramicrough machining-55
coatfinish machining56
coatrough machining-56
non-coatingfinish machining55
non-coatingrough machining-55
PCDfinish machining88
PCDrough machining-55
Tab.3  Rule-knowledge base of cutting tool material, machining precision—cutting tool geometry parameters
cutting tool materialnot suitable for workpiece material
PCDsteel
PCBNhigh ferrite iron
Al2O3 based ceramic aluminum, titanium and their alloys
Si3N4 based ceramic iron and steel
Tab.4  Cutting tool material—not suitable for workpiece material
cutting tool manufacturercutting tool materialcutting typecutting tool type codegradecutting depthap/mmfeedfn/(mm·rev-1)cutting speed v/(m·min-1)workpiece material
SECO cutting toolcoated carbidesemi-finishingCNMG120412-M3TP20001.50.2537345#
Tab.5  Steel 60 similar case
cutting tool manufacturercutting tool materialcutting typecutting tool type codegradecutting depthap/mmfeedfn/(mm·rev-1)cutting speedv/(m·min-1)workpiece material
SECO cutting toolcoated carbidesemi-finishingCNMG120412-M3TP20001.50.2531360#
Tab.6  Steel 60 similarity calculation case
cutting tool manufacturercutting tool materialcutting typecutting tool type codegradecutting depthap/mmfeedfn / (mm·rev-1)cutting speedv/(m·min-1)workpiece material
ZHU ZHOU cutting toolnon-coatingsemi-finishingCNMG120412Y101.50.230045#
Tab.7  Cutting tool YC40 similar case
cutting tool manufacturercutting tool materialcutting typecutting tool type codegradecutting depthap/mmfeedfn / (mm·rev-1)cutting speedv(m·min-1)workpiece material
ZHU ZHOU cutting toolnon-coatingsemi-finishingCNMG120412Y401.50.219845#
Tab.8  Cutting tool YC40 similarity calculation case
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[1] XIANG Kejun, LIU Zhanqiang, AI Xing. Intelligent high-speed cutting database system development[J]. Front. Mech. Eng., 2008, 3(2): 180-188.
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