Analysis of heat-affected zone formation for laser cutting of stainless steel

Sheng, P.; Joshi, Vinay S.

doi:10.1016/0924-0136(94)01761-o

Cited by 63 publications

(39 citation statements)

References 7 publications

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“…For this reason a distinct band of HAZ was created, where the internal properties of material had been changed. Sheng et al (1995) measured the volume of HAZ by SEM and the corresponding temperature range was found 400 o C -800 o C [5,7]. Similarly, from the contour plot of nodal temperature of 3D transient FEM model the maximum range of width of HAZ was measured from the centreline perpendicularly, where the temperature was about 400 o C.…”

Section: B Heat Affected Zone Estimationmentioning

confidence: 99%

“…Khan and Yilbas, presented an analytical model for thermal stress by using finite element method (FEM) to cut sheet metal [4]. Sheng with experiment [5]. Recently Petru et al (2013), analyzed the volume of HAZ in Haynes 188 alloy by using CO2 laser at different laser power and speed.…”

Section: Introductionmentioning

confidence: 99%

“…In this study a 3-D transient FEM model is proposed to measure the width of HAZ in stainless steel-304. The model is evaluated by experimental result of Sheng et al (1995) [5]. Sheng et al (1995) did an experiment to measure the width of heat affected zone [5].…”

Section: Introductionmentioning

confidence: 99%

“…The model is evaluated by experimental result of Sheng et al (1995) [5]. Sheng et al (1995) did an experiment to measure the width of heat affected zone [5]. The laser was CW type CO 2 and work piece was stainless steel 304 with 3.2 mm thickness.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

3D FEM Simulation to Predict the Heat Affected Zone during Laser Machining on Stainless Steel 304

2015

International Academy of Engineers (IA-E) April 24-25, 2015 Pattaya (Thailand)

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Abstract-The minimization of Heat Affected Zone (HAZ) is important in the field of laser machining. The heating of stainless steel-304 with high power laser (CO2) changes the microstructure of material and creates identical HAZ, which needs to identify. In this study a 3D transient finite element model was developed and employed to predict the volume of heat affected zone in stainless steel-304, during laser machining. The 3D transient finite element model was simulated by using ANSYS. The temperature dependent material properties of stainless steel-304 and average absorbtivity were considered in simulation. The outcomes of the model were validated with the experimental results. In this study the average relative error of width of HAZ in 3D transient finite element model was found 2.72%. The model showed a good agreement with the experimental result. Moreover, it was observed that HAZ increase with laser power increase and laser scan speed decrease. The proposed model will be useful in the field of laser assisted mashing, laser cutting and laser welding to optimise the laser power and speed.

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Section: B Heat Affected Zone Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

3D FEM Simulation to Predict the Heat Affected Zone during Laser Machining on Stainless Steel 304

2015

International Academy of Engineers (IA-E) April 24-25, 2015 Pattaya (Thailand)

View full text Add to dashboard Cite

show abstract

“…Sheng and Joshi [3] analysed the heat affected zone formation for laser cutting of stainless steel. The energy balance at the cutting front was used to derive the steady-state kerf shape, and the extent of the heat affected zone (HAZ) can be determined from the area where properties of the workpiece material were significantly affected by the resulting temperature field.…”

Section: Introductionmentioning

confidence: 99%