Influence of the thermal effect on the cutting forces in the ultrasonic machining of high-strength materials

Бекренев, Н. В.; Muldasheva, G. K.; Петровский, А. П.; Tsvetkova, Olga Alekseevna

doi:10.3103/s1068798x15100056

Cited by 9 publications

(18 citation statements)

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“…Contamination, cavitation and debris blockage reduce the quality of SR [4,19,52,60]. Surface quality of cutting zone mainly affected by grit size and power rating parameters [52,61,63,64]. Work material, grit size, concentration, tool and power rating are the controllable factor for better SR. Slurry concentration and abrasive grit size have the significant role in surface quality [1,18,24,31,48,61].…”

Section: Resultsmentioning

confidence: 99%

“…Surface roughness is the most important output response in USM, generally SR is influenced by grit size of abrasive [1,3,4,7,12,47,48,50,63,69]. SR is improved with appropriate selection of grit size [7,18,39,48,57,69,72].…”

Section: Resultsmentioning

confidence: 99%

“…Work material, grit size, concentration, tool and power rating are the controllable factor for better SR. Slurry concentration and abrasive grit size have the significant role in surface quality [1,18,24,31,48,61]. Circulating high flow and fresh slurry will enhanced the surface quality [45,61,63]. SR decrease with decrease in power rating and grit size [7,18,19,21,24,38,54].…”

Section: Resultsmentioning

confidence: 99%

“…Figure 5 schematically depicts the same assuming the work to be rigid for easy depiction. The tool vibrates in a harmonic motion [59,61,63,69,74,75,76]. Thus only during its first quarter of its cycle it can derive an abrasive towards interaction with the tool and work-piece as shown in Figure 6 Out of this quarter cycle, some part is used to engage the tool with abrasive particle as shown in Figure 6 Thus the time of indentation τ can be roughly estimated as …”

Section: Traditional Ultrasonic Machiningmentioning

confidence: 99%

“…The tool material should be such that indentation by the abrasive grits does not lead to brittle failure. Thus the tools are made of tough, strong and ductile materials like steel, stainless steel and other ductile metallic alloys [15,19,37,48,51,61,62,64] Other than this brittle failure of the work material due to indentation some material removal may occur due to free flowing impact of the abrasives against the work material and related solid-solid impact erosion, but it is estimated to be rather insignificant [19,58,63,65,66,67]. Thus, in the current model, material removal would be assumed to take place only due to impact of abrasives between tool and workpiece, followed by indentation and brittle fracture of the workpiece.…”

Section: Traditional Ultrasonic Machiningmentioning

confidence: 99%

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Mathematical Modeling for Material Removal and Optimization of Ultrasonic Drilling of Polycarbonate and Acrylic Glass for Surface Roughness by GRA Approach

Singh¹

2017

IJMEA

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Abstract:Polycarbonate bullet proof and acrylic heat resistant glasses are used as the functional material in many industrial application. In automobile industries, banks and cabins, polycarbonate bullet proof glass has been used for security purpose. Similarly, acrylic heat resistant glass is used in furnace, microwaves, space craft and airplane applications. In this experimental research paper, Taguchi modal and Grey relational analysis are utilized for the ultrasonic drilling in these materials. For experimentation, input parameters are concentration, abrasive, grit size, power rating, hydrofluoric acid and tool materials. Output parameters are material removal rate, tool wear rate and surface roughness. In which, surface roughness is most significant output parameter, because it describe accuracy of the process. Through optimization analysis, Taguchi modal suggest that 40% abrasive concentration, mixture of (Alumina, Silicon carbide and Boron carbide) abrasive in 1:1:1, 600 grit of abrasive and 1.5% hydrofluoric acid gives best results for drilling in polycarbonate bullet proof glass material. Similarly, in acrylic heat resistant glass, mixture of Silicon carbide and Boron carbide (1:1), 600 grit abrasive and 1% hydrofluoric acid gives the optimum results. Concentration of slurry, abrasive grit size and hydrofluoric acid are the most significant parameters for ultrasonic drilling in both materials. Through Grey relational analysis the surface roughness is improved by 40% and 48% in polycarbonate (UL-752) and acrylic (BS-476) glass respectively.

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