Influence of preheating on performance of circular carbide inserts in end milling of carbon steel

Amin, A. K. M. Nurul; Abraham, Irwan; Khairusshima, Nor; Musse, Mohamud Ahmed

doi:10.1016/j.jmatprotec.2006.03.131

Cited by 13 publications

(5 citation statements)

References 4 publications

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“…The roughness results obtained in this work presented equal tendencies to those divulged in scientific literature, when finishing operation using high-speed cutting is researched (Tönshoff et al, 2001;Schulz, Abele and Sahm, 2001;Schützer and Schulz, 2004;Rodrigues andCoelho, 2007 andAmin et al, 2007). Figure 3 shows a synthesis about the roughness behavior in the tests.…”

Section: Workpiece Surface Finishsupporting

confidence: 75%

Effects of milling condition on the surface integrity of hot forged steel

Rodrigues¹,

Matsumoto²,

Yamakami³

et al. 2010

J. Braz. Soc. Mech. Sci. & Eng.

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Section: Workpiece Surface Finishsupporting

confidence: 75%

Effects of milling condition on the surface integrity of hot forged steel

Rodrigues¹,

Matsumoto²,

Yamakami³

et al. 2010

J. Braz. Soc. Mech. Sci. & Eng.

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“…Preheated machining has been found to reduce the amplitude of the lower frequency mode of chatter by almost 4.5 times at the cutting speed of 50 m/min. It was also established by several other earlier studies [11][12][13][14] that preheating had great potential in lowering chatter.…”

Section: Maity and Swainmentioning

confidence: 58%

Preheating in End Milling of AISI D2 Hardened Steel with Coated Carbide Inserts

Lajis

Amin

Karim

et al. 2009

AMR

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Abstract. This study was conducted to investigate the effect of preheating through inductive heating mechanism in end milling of AISI D2 hardened steel (60-62 HRC) by using coated carbide tool inserts. Apart from preheating, two other machining parameters such as cutting speed and feed were varied while the depth of cut constant was kept constant. Tool wear phenomenon and machined surface finish were found to be significantly affected by preheating temperature and other two variables. End milling operation was performed on a Vertical Machining Centre (VMC). Preheating of the work material to a higher temperature range resulted in a noticeable reduction in tool wear rate leading to a longer tool life. In addition, improved surface finish was obtained with surface roughness values lower than 0.4 µm, leaving a possibility of skipping the grinding and polishing operations for certain applications.

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“…Preheated machining has been found to reduce the amplitude of the lower frequency mode of chatter by almost 4.5 times at the cutting speed of 50 m min −1 . It was also established by several other earlier studies [11,12] that preheating had great potential in lowering chatter.…”

Section: Introductionmentioning

confidence: 67%

Hot Machining of Hardened Steels with Coated Carbide Inserts

Lajis¹,

Amin²,

Karim³

et al. 2009

American J. of Engineering and Applied Sciences

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Problem statement:The benefits of easier manufacture of hardened steel components can be substantial in terms of reduced machining costs and lead times compared to the traditional route involving machining of the annealed state followed by heat treatment, grinding/EDM and manual finishing. But machinability of hard material through conventional machining is hindered due to excessive wear of the cutting tools and differently in achieving desired quality of the machined surface. In end milling the cutting tool is not in constant operation and so undergoes a heat cycle during the intermittent cutting. This alternate heating and cooling of the inserts lead to the thermal cracks and subsequently failure of the tool. Approach: This study was conducted to investigate the effect of preheating through inductive heating mechanism in end milling (vertical milling center) of AISI D2 hardened steel (56-62 HRC) by using coated carbide tool inserts. Apart from preheating, two other machining parameters such as cutting speed and feed were varied while the depth of cut was kept constant. Results: Tool wear phenomenon and machined surface finish were found to be significantly affected by preheating temperature and other two variables. Preheating temperature of 335°C coupled with cutting speed of 40 m min −1 , depth of cut of 1.0 mm and feed of 0.02 mm/tooth resulted in a noticeable reduction in tool wear rate leading to a maximum tool life 188.55 min. In addition, cutting speed of 56.57 m min −1 together with feed of 0.044 mm/tooth and depth of cut 1.0 mm at which maximum VMR (9500 mm 3 ) was secured provides a better surface finish with minimum surface roughness 0.25 µm leaving a possibility of skipping the grinding and polishing operations for certain applications. Conclusion/Recommendation: Through the end milling of preheated AISI D2 hardened steel by using TiAlN coated carbide cutting tool it can be concluded that an overall enhanced machinability is achievable by preventing catastrophic damage of the cutting tool at higher levels of feed and cutting speed.

show abstract

Influence of preheating on performance of circular carbide inserts in end milling of carbon steel

Cited by 13 publications

References 4 publications

Effects of milling condition on the surface integrity of hot forged steel

Effects of milling condition on the surface integrity of hot forged steel

Preheating in End Milling of AISI D2 Hardened Steel with Coated Carbide Inserts

Hot Machining of Hardened Steels with Coated Carbide Inserts

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