jai hindus - Academia.edu (original) (raw)
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Institute of Rock Structure and Mechanics, Academy of Sciences of the Czech Republic
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Papers by jai hindus
This paper assists the die designer to design press tool dies for the online maintenance in the p... more This paper assists the die designer to design press tool dies for the online maintenance in the press itself and to reduce the tool failure due to the dynamic actions of the press tool in the press. In the proposed die design the parts such as punch, punch holder, stripper, die and the die inserts can be removed in the press itself without disturbing the die set. The route chart of the die (tool) maintenance can be decreased by implementing the methodology. The proposed approach increases the productivity by adopting more feasibility to attend online maintenance, and reduce the overall productivity hours.
Procedia Engineering, 2014
This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The... more This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The Nd: YAG laser was used for the tempering. The laser was delivered through a fiber optic cable from the source to the delivery head. The laser delivery head was mounted in a lathe using a special fixture for treating the cylindrical work pieces. The effect of laser parameters such as power and spot size, and machine parameters such as surface speed and feed were studied. The microstructures of the laser tempered samples show tempered white layer and dark heat affected zones in all work pieces. The variation of micro hardness was measured from the top surface of work piece to the depth of heat affected zone and plotted.
This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The... more This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The Nd: YAG laser was used for the tempering. The laser was delivered through a fiber optic cable from the source to the delivery head. The laser delivery head was mounted in a lathe using a special fixture for treating the cylindrical work pieces. The effect of laser parameters such as power and spot size, and machine parameters such as surface speed and feed were studied. The microstructures of the laser tempered samples show tempered white layer and dark heat affected zones in all work pieces. The variation of micro hardness was measured from the top surface of work piece to the depth of heat affected zone and plotted.
This paper assists the die designer to design press tool dies for the online maintenance in the p... more This paper assists the die designer to design press tool dies for the online maintenance in the press itself and to reduce the tool failure due to the dynamic actions of the press tool in the press. In the proposed die design the parts such as punch, punch holder, stripper, die and the die inserts can be removed in the press itself without disturbing the die set. The route chart of the die (tool) maintenance can be decreased by implementing the methodology. The proposed approach increases the productivity by adopting more feasibility to attend online maintenance, and reduce the overall productivity hours.
Procedia Engineering, 2014
This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The... more This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The Nd: YAG laser was used for the tempering. The laser was delivered through a fiber optic cable from the source to the delivery head. The laser delivery head was mounted in a lathe using a special fixture for treating the cylindrical work pieces. The effect of laser parameters such as power and spot size, and machine parameters such as surface speed and feed were studied. The microstructures of the laser tempered samples show tempered white layer and dark heat affected zones in all work pieces. The variation of micro hardness was measured from the top surface of work piece to the depth of heat affected zone and plotted.
This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The... more This paper deals with an experimental investigation of laser tempering of AISI D2 tool steel. The Nd: YAG laser was used for the tempering. The laser was delivered through a fiber optic cable from the source to the delivery head. The laser delivery head was mounted in a lathe using a special fixture for treating the cylindrical work pieces. The effect of laser parameters such as power and spot size, and machine parameters such as surface speed and feed were studied. The microstructures of the laser tempered samples show tempered white layer and dark heat affected zones in all work pieces. The variation of micro hardness was measured from the top surface of work piece to the depth of heat affected zone and plotted.