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Forgings in the engineering drawing
Krulich, Hynek ; Nohál, Libor (referee) ; Svoboda, Petr (advisor)
This Bachelor’s thesis deals with an overview study of technical documentation of forgings. It includes history, characteristics, basic division and machines used in forging. Next part focuses on their creation by the die method. Final part is discussion which summarises an examlpe of these method.
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Piston rod eye production
Hořava, David ; Jopek, Miroslav (referee) ; Lidmila, Zdeněk (advisor)
The bachelor's project elaborated design of technology production of the piston rod eye in series of 45 000 pieces. The piston rod eye is made of steel rod C45E by die forging. Pursuant to of the literary pursuit and necessary technological calculations was chosen a pneumatic – hydraulic hammer KHZ 4A, from the company called Šmeral, with a forming energy of 50 kJ, for forging of component. Cross wedge rolling machine was chosen for overdosage of forged piece in form of double piece. Shearing press LKOA 200, from the company called Šmeral, with a forming force of 2 000 kN, was chosen for shearing of forged piece. At the end, the technical – economic evaluation of material costs was calculated.
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Drop forging of gear wheel
Bednařík, Petr ; Lidmila, Zdeněk (referee) ; Štroner, Marek (advisor)
The project elaborated design of technology production of gear wheel from circular blanks of steel 12 050. Pursuant to of the literary pursuit a problem of the die forging and calculation was designed manufacturing process. Dies proposal will be based on relevant standards, materials die steel will be 19 552. Given the complexity of the shape and dimensions of the gear will be used in three operations. Based on the calculated forging force was chosen vertical forging sheet LMZ 1600 A/S with a nominal power of 16 MN. Due to the use of the press die is provided with an ejector.
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Production of holder body by solid forming
Tichý, Pavel ; Štroner, Marek (referee) ; Kopřiva, Miloslav (advisor)
TICHÝ Pavel: Production of a holder body by solid forming. A Graduation Thesis of Master´s Studies, the 5th Year of Study, the School-year 2008/2009, FSI VUT Brno, Department of Machining, May 2009, Pages No. 80, Appendixes No. 9. The Graduation Thesis, elaborated in the framework of engineering studies, presents the technology of a body holder production carried out by solid forming. The material of the forged piece is steel Ck55 (12 060), the semi-finished product is of the 65 and its length is 12m. A yearly production is 122 000 pieces. Based on the studies of possible production technologies, the technology of production by die forging has been chosen, while a drop forging technology on a hammer HO630 and product-trim on a trimming press S160 have been used. For this option, the required technological calculations, the design of the die, the specification of production machines, which are necessary for forging process realization, have been carried out. An inspection of the propose forging by a private forge and a change in the geometry of the die have been carried out. A part of the study is a simulation forming process which is made in the software QFORM.
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The Issue of Trimming and Punching of the Forged Piece
Kopečný, Adam ; Šlais, Miroslav (referee) ; Řiháček, Jan (advisor)
The bachelor thesis deals with the design of tool for punching and trimming of the forged case, made from 14 331 steel. Forging will be done on forging press LMZ 1 000 made by Šmeral Brno, a. s. The dies are made from 19 552 steel. Production series is 520 000 pieces per year. The tool is designed as progressive. Simulation of the forging process in FormFEM software has been done, because of evaluation of the trimming and punching temperature. Based on calculated punching and trimming force the press S 160 E made by Šmeral Brno, a. s., was chosen. Piercing punches and dies are produced from instrumental steel 19 550, with heat treatment according to design documentation. To conclude, the economical evaluation was done. The bachelor thesis was done in cooperation with Šmeral Brno, a. s.
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Production of the piston rod eye
Vahala, Jiří ; Štroner, Marek (referee) ; Podaný, Kamil (advisor)
The project deal with technology design of production of the piston rod eye from steel 11 523 in the amount of 30 000 pieces. From various possibilities of technology was chosen as the most optimal method the technology die forging. Pursuant to the study of literature and calculations there will be made the forging as a double-edged in single-cavity die on hammer witch several hits in finishing hollow. According to the calculated energy there was selected pneumatic-hydraulic hammer KHZ-4A witch stated energy of 40kJ. The tool was made of steel 19 552, heat-treated according to the drawing documentation. The technical and economical evaluation was focused on the total material cost of the semi-finished material and the cost of manufacturing forging die, which is 1 229 507 CZK in total.
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Production of gear
Havlíček, Roman ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design of production technology of the chain wheel used in the scraper conveyor made of 14 220 steel. After considering all production options, die forging was selected. On the basis of chosen technology, shape adjustments, additions and dimensional tolerances were made. From the volume of the forged wheel, a semi-finished product with a diameter of 150 mm and a length of 106 mm was determined. Based on the scale of series, the machinery equipment of the company and the size of the forged piece, the KHZ 16A hammer, with a nominal energy of 160 kJ, was chosen as a forming machine. According to the standards, a single-die dies were designed for the forging. The LKOA 200 press was chosen to cut off the flash and the membranes. Additional machines for manufacturing were chosen and technological standard was compiled. At the end costs of the material for production amounting to 2 566 045,3 CZK and the cost of production of die in the amount of 187 000 CZK were calculated.
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Production of gear
Svozilová, Lucie ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The project elaborated design of technology production of the spur bevel gear, which is made of a steel rod from material 12 050. Pursuant to of the literary pursuit and calculation is designed as a threeoperational forging in an open die with using of ejector. Forging is realised in the vertical crank press LZK 1600 P/SH, with forming force 16 MN. Shearing and punching is performed in the shear press LKOA 200. Forging dies are produced from alloyed instrumental steel 19 556 heat-worked according to drawing documentation.
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Design of crane hook production
Horák, Tomáš ; Štroner, Marek (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design of the production of a crane hook made of C45 steel. After evaluating suitable technologies, die forging on a mechanical press was chosen. Based on the analysis of technological technology, the shape of the part was modified and all necessary additions and limit deviations of forging dimensions were determined. The semi-finished product with a diameter of 65 mm and a length of 380 mm will be formed on a cross wedge rolling mill, bent on a separate press and subsequently forged. The crank forging press LZK 3150 B from the company ŠMERAL Brno a. S., With a nominal forming force of 31.5 MN, was chosen from the calculated forming force. The construction of the dies is based on the ČSN 22 8306 standard and they are made of 19,552 steel with subsequent heat treatment.
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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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