Design and experimental evaluation of a circular saw blade with self-clamped cutting inserts

Circular saw blades are fundamental and necessary cutting tools used for sawing, slicing, and related machining processes. In this paper, an innovative and economical design of a circular saw blade with self-clamped cutting inserts used for general purpose steel cutting is presented. The designed circular saw blade consists of a plurality of cutting inserts assembled to a circular saw plate through an elastic deformation-based self-clamping mechanism. Prototypes of the designed circular saw blade were actually fabricated. Slicing tests of workpieces made of JIS S45C carbon steel and JIS SCM440 alloy steel were conducted, and the induced cutting forces and surface roughness were also measured and then evaluated through established response surface models. The resultant cutting forces obtained from all slicing tests were less than 560 N, which indicates that a moderate level of cutting forces would be induced. The values of arithmetical mean roughness obtained from all slicing tests significantly ranged from 1 to 4 μm, which indicates that well surface quality of the machined surface could be achieved. Therefore, the presented circular saw blade was feasible for applications of general purpose steel cutting.

[1]  Sung-Hoon Ahn,et al.  Geometric optimization of micro drills using Taguchi methods and response surface methodology , 2011 .

[2]  Chiaki Tanaka,et al.  The critical rotational speed of circular saw: simple measurement method and its practical implementations , 2007, Journal of Wood Science.

[3]  Y. M. Stakhiev Today and tomorrow circular sawblades: Russian version , 2000, Holz als Roh- und Werkstoff.

[4]  P. Chabrier,et al.  An overview of methods for monitoring circular saw blade preparation , 1999, Holz als Roh- und Werkstoff.

[5]  R. Honeycombe Steels, Microstructure and Properties , 1982 .

[6]  G. Zhao,et al.  Cutting force models for Fe–Al-based coating processed by a compound NC machine tool , 2015 .

[7]  Vivek Aggarwal,et al.  Parametric modeling and optimization for wire electrical discharge machining of Inconel 718 using response surface methodology , 2015 .

[8]  Simul Banerjee,et al.  Some study on electrical discharge machining of ({WC+TiC+TaC/NbC}–Co) cemented carbide , 2009 .

[9]  Nobuaki Hattori,et al.  Idling noise from circular saws made of metals with different damping capacities , 2005, Journal of Wood Science.

[10]  Robert Kowalczyk,et al.  Estimating the effect of cutting data on surface roughness and cutting force during WC-Co turning with PCD tool using Taguchi design and ANOVA analysis , 2015 .

[11]  Sung-Chul Hwang,et al.  A study on the characteristic of parameters by the response surface method in final wafer polishing , 2009 .

[12]  C. Tanaka,et al.  Circular saw lateral stability by optimization of feed speed , 2002, Holz als Roh- und Werkstoff.

[13]  W. F. Reiter,et al.  On the nature of idling noise of circular saw blades , 1976 .

[14]  Vlado Goglia,et al.  Some possibilities for reducing circular saw idling noise , 2004, Journal of Wood Science.

[15]  Etsuo Marui,et al.  Effects of slots on the lateral vibration of a circular saw blade , 1996 .