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Drop forging of gear wheel
Bezděk, Pavel ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
Objective of this bachelor thesis is design of forging of gear manufactured by die forging. Material of gear is steel 12. According to number of forgings per year, forging of gear will be done on vertical forging press LMZ 2500 with nominal forming power of 25 MN. Dies are made of middle doped steel 19 552. In conclusion, costs of producing of gear forging with selected manufacturing technology are evaluated.
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Forging gear
Šíma, Vojtěch ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
The project elaborated in a frame of Bachelor‘s studies branch B-STG presents a technology design of a forged piece – gear wheel by drop forging. The wheel is made form 12 050.0 material and is a part of an agriculture machine. Considering the series of 45 000 pieces per a year and the precision of production, the drop forging for three operations was selected for production. The wheel will be produced on the crank drawing inclinable press LKZ 1600 P from Šmeral Brno, a.s. producer with nominal tensile force 16 MN. Swages are made of alloyed instrumental steel 19 552.8. At the end of the project technical economic evaluation of production and comparison of the forging technology and machining technology was implemented.
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Forging of rotary forgings
Konvalina, Michal ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The thesis is focused on manufacturing proposal of the conveyor chain sprocket using die forging from steel C45 (12 050). Based on the literature review of eligible technologies, volume termoforming technolology has been selected here, more accurately closed die forging on a vertical crank forging press with an open flash gutter. Dimensions of forging and die are designed according to appropriate valid standards. Based on calculated tensile force of 10,83 MN will be forging performed on vertical forging press LZK 1600 P/SH. Forging die will be made of low alloy tool steel 1.2713 (19 662) and ejection of forging will be executed by three ejector pins in lower and upper finishing die.
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Metal forming production of bush by cold extrusion.
Šimeček, Tomáš ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
ŠIMEČEK Tomáš: Metal forming production of bush by cold extrusion. The project elaborated in frame of bachelor study degree brings a proposal of step by step metal forming production of bush by cold extrusion. Workpiece is made of normalized circle-shaped bar using 12 050 steel. The step by step production is based on literary pursuit of volumetric forming and calculation and is designed into five steps containing cutting, pressing and extrusion. These operations will be done on multistage pressing automatic machine TPZK 25 manufactured by ŠMERAL Brno, plc. with nominal pressing force of 5MN. Semi-finished product is placed into tooling´s workspace with manipulator. Final part extraction is solved with ejector integrated in automatic machine. Tools are made of tool steel, extrusion punch is designed of 19 550.4 steel, extrusion die is designed of 19 436.4 steel and extrusion die´s band is designed of 19 733.4 steel. Tools are designed to be improved by hardening and drawing.
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Forging of rotary forgings
Konvalina, Michal ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The thesis is focused on manufacturing proposal of the conveyor chain sprocket using die forging from steel C45 (12 050). Based on the literature review of eligible technologies, volume termoforming technolology has been selected here, more accurately closed die forging on a vertical crank forging press with an open flash gutter. Dimensions of forging and die are designed according to appropriate valid standards. Based on calculated tensile force of 10,83 MN will be forging performed on vertical forging press LZK 1600 P/SH. Forging die will be made of low alloy tool steel 1.2713 (19 662) and ejection of forging will be executed by three ejector pins in lower and upper finishing die.
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Forging gear
Šíma, Vojtěch ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
The project elaborated in a frame of Bachelor‘s studies branch B-STG presents a technology design of a forged piece – gear wheel by drop forging. The wheel is made form 12 050.0 material and is a part of an agriculture machine. Considering the series of 45 000 pieces per a year and the precision of production, the drop forging for three operations was selected for production. The wheel will be produced on the crank drawing inclinable press LKZ 1600 P from Šmeral Brno, a.s. producer with nominal tensile force 16 MN. Swages are made of alloyed instrumental steel 19 552.8. At the end of the project technical economic evaluation of production and comparison of the forging technology and machining technology was implemented.
|
|
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Drop forging of gear wheel
Bezděk, Pavel ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
Objective of this bachelor thesis is design of forging of gear manufactured by die forging. Material of gear is steel 12. According to number of forgings per year, forging of gear will be done on vertical forging press LMZ 2500 with nominal forming power of 25 MN. Dies are made of middle doped steel 19 552. In conclusion, costs of producing of gear forging with selected manufacturing technology are evaluated.
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|
|
Metal forming production of bush by cold extrusion.
Šimeček, Tomáš ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
ŠIMEČEK Tomáš: Metal forming production of bush by cold extrusion. The project elaborated in frame of bachelor study degree brings a proposal of step by step metal forming production of bush by cold extrusion. Workpiece is made of normalized circle-shaped bar using 12 050 steel. The step by step production is based on literary pursuit of volumetric forming and calculation and is designed into five steps containing cutting, pressing and extrusion. These operations will be done on multistage pressing automatic machine TPZK 25 manufactured by ŠMERAL Brno, plc. with nominal pressing force of 5MN. Semi-finished product is placed into tooling´s workspace with manipulator. Final part extraction is solved with ejector integrated in automatic machine. Tools are made of tool steel, extrusion punch is designed of 19 550.4 steel, extrusion die is designed of 19 436.4 steel and extrusion die´s band is designed of 19 733.4 steel. Tools are designed to be improved by hardening and drawing.
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