Ming CHEN
,
Fanghong SUN
,
Youngmoon LEE
,
Seunghan YANG
,
Jongchan LEE
材料科学技术（英文）
Most of the mechanical dressing technologies for resin bonded superabrasive grinding wheels are time consuming and costly. Based on the outcomes of the simulations in the previous study, this paper demonstrates the comprehensive researches on the laser-assisted dressing process control, grinding wheel topography reconfiguration by 3D laser scanning technology and analyses of grinding temperature. The synthesized parameter incorporates the laser dressing process parameters and can be used to the process control. In order to evaluate the laser-assisted dressing effectiveness, the newly developed non-contact laser measuring system based on the principle of the triangulation was used. Grain protrusion height and intergrain spacing can characterize the grinding wheel surface. A series of grinding tests with the laser-assisted dressed grinding wheel and mechanically dressed grinding wheel were conducted for comparison. The results proved the feasibility of laser-assisted dressing for resin bonded superabrasive grinding wheels and revealed the importance of choosing appropriate laser dressing parameters.
关键词:
Grinding wheel topography
,
null
,
null
,
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Seunghan YANG
,
Seungil CHANG
,
Youngmoon LEE
,
Heesool KIM
,
Taejo KO
材料科学技术（英文）
As a new approach to analyze shear behaviors in the shear plane and chip-tool friction behaviors in the chip-tool contact region during an end milling process, this paper introduces a method to transform an up-end milling process to an equivalent oblique cutting process. In this approach, varying undeformed chip thicknesses and cutting forces in the up-end milling process are replaced with the equivalent of oblique cutting ones. Experimental investigations for Inconel 718 were performed to verify the presented model.
关键词:
Up-end milling
,
null
,
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