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An investigation of the number of inserts effect on the machining time and metal removal rate during the milling of AISI D3 steel at high cutting speeds
Dilipak, Hakan (Author), Güldaş, Abdulmecit (Author), Gezgin, Akin (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-FFO3Y4E7 This link opens in a new window

Abstract
V študiji je bil raziskan vpliv števila ploščic na rezkarju na hitrost odvzema kovine in čas obdelave pri rezkanju orodnega jekla za delo v hladnem AISI D3. Obdelava je bila opravljena na CNC-obdelovalnem centru. Preizkusi obdelovalnosti so bili opravljeni v pogojih suhega odrezavanja pri različnih rezalnih hitrostih, hitrostih podajanja in številih ploščic. Življenjska doba orodja je bila ugotovljena s pomočjo meritve obrabe bokov z optičnim mikroskopom. Čas obdelave se je skrajšal s povečanjem rezalne hitrosti, števila ploščic in hitrosti podajanja. S povečanjem teh parametrov pa se je povečala tudi obraba bokov. Obraba bokov se je do prvih 0,2 mm povečevala postopoma, nad to točko pa je pri drugačnih delovnih pogojih in pri drugačnem številu ploščic prišlo do bistveno hitrejše obrabe. Takšno stanje po prvih 0,2mm obrabe se je pojavljalo dosledno zaradi visokih rezalnih hitrosti, hitre obrabe in posledičnega nastajanja zarez.

Language:English
Keywords:čas obdelave, obraba bokov, hitrost odvzema kovine pri rezkanju, machining time, flank wear, metal removal rate in milling
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2009
Publisher:= Association of Mechanical Engineers and Technicians of Slovenia et al.
Number of pages:str. 438-443
Numbering:Vol. 55, no. 7/8
UDC:621.91
ISSN on article:0039-2480
COBISS.SI-ID:11064859 Link is opened in a new window
Views:552
Downloads:173
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
ISSN:0039-2480
COBISS.SI-ID:762116 This link opens in a new window

Secondary language

Language:English
Abstract:
In this study, the effect of the number of milling cutter inserts on the metal removal and the machining time in milling of AISI D3 cold work tool steel has been investigated. A CNC machining centre was used for cutting operations. The machinability tests were carried out in dry cutting conditionsat various cutting speeds, feed rates and with different number of inserts. The flank wear was measured by using an optical microscope in order to determine the tool life. The machining time decreased when the cutting speed, the number of inserts and feed rate increased. On the contrary, the flank wear increased when the same parameters increased. The flank wear increased gradually until the first 0.2 mm, but the wear rate increased significantly when above this point under different cutting conditions and with different numbers of inserts. This condition following the first 0.2 mm wear value was constant due to the high cutting speed rates based on the notch wear which emerged from fast wear.


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