Laser Drilling Assisted with Jet Electrochemical Machining

Zhang, Hua

doi:10.5772/35289

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…It can be noted from Fig. 5(a) [7] and Fig. 5(b) that the wall of hole has obviously recast layer of 20-30μm and 10-20μm thickness.…”

Section: Resultsmentioning

confidence: 96%

“…In JECM-GLBM, it is vital that the energy of laser is attenuates by the jet electrolyte. The attenuation coefficient of green laser (532nm) and infrared laser(1064nm) are 16 m-1 and 38m-1 in 18% NaNO3, respectively [6,7] . Therefore, The paper uses Nd:YAG frequency doubling(532nm) laser.…”

Section: Process Principlesmentioning

confidence: 99%

“…In order to reduce or eliminate the spatter, the recast layer at the same time of laser drilling, our terms presented jet electrochemical machining and laser beam machining(JECM-LBM) [6][7] , which shows as figure 1(a). The laser beam is focused onto the surface of workpiece.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Investigation on the Process of Jet Electrochemical Machining and Guided Laser Beam Machining

Yuan

Zhao

2010

KEM

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Laser beam machining is often associated with the metallurgical defects related with spatter, recast layer and heat-affected zone. In order to overcome the defects, this paper presents a process of jet electrochemical machining and guided laser beam machining (JECM-GLBM). On the explain of experimental principle and apparatus, jet electrochemical machining and laser beam machining(JECM-LBM) and JECM-GLBM experiments have been performed on 0.5mm thick 321S20 stainless steel under the same experimental condition respectively. The experimental results show that the entry circularity, repeatability and the surface quality of JECM-GLBM are significantly better than JECM-LBM, and the spatter and the recast layer of hole-wall has been mostly removed in JECM-GLBM. In addition, increasing the IEG leads that the taper and overcut are decreased in JECM-GLBM. By analyzing the experimental results, the best IEG is 10mm, which is unusually beneficial for the design of equipment in engineering application.

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“…It can be noted from Fig. 5(a) [7] and Fig. 5(b) that the wall of hole has obviously recast layer of 20-30μm and 10-20μm thickness.…”

Section: Resultsmentioning

confidence: 96%

Section: Process Principlesmentioning

confidence: 99%

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Experimental Investigation on the Process of Jet Electrochemical Machining and Guided Laser Beam Machining

Yuan

Zhao

2010

KEM

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“…The laser beam takes the chief responsibility of removing the scrap material during JECM-LD, while the jet electrochemical machining serves the auxiliary function of eliminating the recast layers and spatters. Figure 41(b) exhibits better surface quality and a smoother hole periphery for the hybrid process compared to a single lasermachining process (49). In contrast, the hybrid process provides microholes with a comparatively lower HAZ and fewer spatters, as can be seen from Figure 41(b).…”

Section: Laser Microdrilling With Jet Electrochemical Machiningmentioning

confidence: 88%

Compound and Hybrid Micromachining Processes

Rahman

Asad

Wong

et al. 2014

Comprehensive Materials Processing

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“…Recently, studies on combined processing technique are common applied to other fields, for example, Micro-Machining Technology of ECM Combined Ultrasonic Vibration, Jet Electrochemical Machining and Laser Beam Machining, Magnetorheological Fininshing Technology. For hard nonmetal raw materials, micro-machining technology of ECM combined ultrasonic vibration is feasible advantageous; however, such technology is featured with low efficiency and great tool wearing [1][2]for flexible metal materials. Jet Electrochemical Machining and Laser Beam Machining is defective as it requires secondary casting, thus it is much more applicable to coarse machining including perforating [3]; Magnetorheological Fininshing Technology is advanced technically, however, the time-consuming process will result in cost increment [4].…”

Section: Introductionmentioning

confidence: 99%

Research on the Mechanism of Combined Raceway Superfinishing Technique of Precision Bearing

Huang

Mei

et al. 2014

AMR

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This paper analyzes the mechanism of combined raceway superfinishing technique of precision bearing, via the relationship between coarse and superfinishing oilstone and raceway geometric accuracy, probes forming mechanism of raceway geometric accuracy under double oilstone pressure as well as auto dynamic control functions. Additionally, this paper analyzes the feasibility of combined coarse and superfinishing technique, brings forward practice methods and steps of combined finishing technique; discusses how to realize smooth transition of technique parameters, so as to reduce surface texture changes of working pieces, achieve assistant grinding of superfinishing oilstone, improve surface quality of raceway and decrease reflection error of superfinishing. Meanwhile, this paper adopts embeded technology to realize auto dynamic control of oilstone pressure, so as to effectively eliminate surface error resulted from oilstone raising and furthermore enhance surface geometric accuracy of precision bearing.

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Laser Drilling Assisted with Jet Electrochemical Machining

Cited by 4 publications

References 7 publications

Experimental Investigation on the Process of Jet Electrochemical Machining and Guided Laser Beam Machining

Experimental Investigation on the Process of Jet Electrochemical Machining and Guided Laser Beam Machining

Compound and Hybrid Micromachining Processes

Research on the Mechanism of Combined Raceway Superfinishing Technique of Precision Bearing

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