Study on Machinability of 35CrMnSiA Steel in Hard Turning Process

Zhao, Wen Xiang; Pang, Si Qin; Long, Zhen Hai; Wang, Xi Bin

doi:10.4028/www.scientific.net/MSF.532-533.349

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Study on Machinability of 35CrMnSiA Steel in Hard Turning Process

Abstract:

35CrMnSiA, is a kind of important engineering materials that used widely in modern manufacturing fields. The machinability of 35CrMnSiA Steel with hardness of HRc40±2 in high speed turning process was studied in this paper. It is concluded that, when high speed turning of this ultra-high strength alloy steel, the chief wear mode of ceramics is the crater on rake faces; the interaction of depth of cut and feed rate is one of statistic significant effects on cutting force; the interaction of cutting velocity of cut and feed rate is one of statistic significant effects on surface roughness Ra; besides, the empirical formula of average cutting temperature, cutting forces, surface roughness Ra, was established.

Info:

Periodical:

Materials Science Forum (Volumes 532-533)

Main Theme:

Advances in Materials Manufacturing Science and Technology II

Edited by:

Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu

Pages:

349-352

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.532-533.349

Citation:

W. X. Zhao et al., "Study on Machinability of 35CrMnSiA Steel in Hard Turning Process", Materials Science Forum, Vols. 532-533, pp. 349-352, 2006

Online since:

December 2006

Authors:

Wen Xiang Zhao, Si Qin Pang, Zhen Hai Long, Xi Bin Wang

Keywords:

Cutting Force, Cutting Temperature, High Strength Alloys, Surface Finish, Wear

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$38.00

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References

[1] R.W. Lanz: Journal of Materials Processing Technology, Vol. 127 (2002), pp.242-245.

[2] Y.B. Guo and C. R. Liu: ASME, Vol. 124 (2002), pp.189-199.

[3] T. A Harris: Rolling Bearing Analysis (Wiley, New York 1991).

[4] S. Agha and C.R. Liu: Wear, Vol. 244 (2000), pp.52-59.

[5] B.J. Griffithsand D.C. Furze: ASME J. Eng. Ind., Vol. 109 (1987), pp.338-342.

[6] T.S. Smith: Journal Manufacturing Science & Engineering, ASME, Vol. 119 (1997), pp.664-666.

[7] M.C. Shaw: Metal Cutting Principles (Oxford Science Publications, 1989).

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446

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Authors: D.L. Wang, Y.Q. Kong

Abstract: The design for orthogonal cutting experiment is made according to the characteristics of a new kind of nickel-based super alloy. The machinability of this new material in milling and drilling operations, including cutting force and tool wear, has been researched through experiments and then the empirical formulas of cutting force in milling and drilling have been presented. The research is useful in selecting the tool geometry and cutting parameters for machining the new material in practice.

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Study of Cutting Forces on Machinability Properties of Gray Cast Iron Using New Ceramics Cutting Tools

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Abstract: During gray cast iron cutting, the great rate of mechanical energy from cutting forces is converted into heat. Considerable heat is generated, principally in three areas: the shear zone, rake face and at the clearance side of the cutting edge. Excessive heat will cause undesirable high temperature in the tool which leads to softening of the tool and its accelerated wear and breakage. Nowadays the advanced ceramics are widely used in cutting tools. In this paper a composition special of Si3N4 was sintering, characterized, cut and ground to make SNGN120408 and applyed in machining gray cast iron with hardness equal 205 HB in dry cutting conditions by using digital controlled computer lathe. The tool performance was analysed in function of cutting forces, flank wear, temperature and roughness. Therefore metal removing process is carried out for three different cutting speeds (300 m/min, 600 m/min, and 800 m/min), while a cutting depth of 1 mm and a feed rate of 0.33 mm/rev are kept constant. As a result of the experiments, the lowest main cutting force, which depends on cutting speed, is obtained as 264 N at 600 m/min while the highest main cutting force is recorded as 294 N at 300 m/min.

598

Cutting Performance of Al₂O₃/TiC/TiN Nanocomposite Tools

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Abstract: A multi-scale and multi-phase nanocomposite ceramic cutting tool material Al2O3/TiC/TiN(LTN) with high comprehensive mechanical properties has been successfully fabricated by means of adding micro-scale TiC and nano-scale TiN particles. The cutting performance and wear mechanisms of this advanced ceramic cutting tool were researched by turning two kinds of hardened steel 40Cr and T10A respectively. Compared with the commercial ceramic tool LT55, LTN showed a superior wear resistance with certain machining parameters. The machining tests indicated that the new materials tool is suitable for continuously dry cutting of hardened steel with high hardness at high speed.

318

Experimental Study on Cutting Forces in Turning Aluminum-Silicon Alloy ZL104

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