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Proposal of casting technology for cooper alloy castnig with regard to their quality and productivity of fininishing oprations
Herzán, Jiří ; Lána, Ivo (referee) ; Roučka, Jaromír (advisor)
This paper is created based on the real situation in Armatmetal s.r.o. Based on customer requirements and possible reduction of finishing operations at the end of production in the foundry. The foundry technology of gravity casting into sand molds is changed to gravity casting into metal mold. To change technology at Armatmetal s.r.o. two types of castings were selected. The "Kloub 55 s vidlicí" casting was selected by the customer to test the new technology. Casting "Klínová koncovka KN10" was chosen by Armatmetal s.r.o. because of the structural design of the casting and the high repeatability of production. Castings are the subject of the paper. The diploma thesis includes methods of solving the elimination of foundry defects occurring on a complicated casting " Kloub 55 s vidlicí". The main aim of the thesis is to assess the technical-economic contribution of the change of foundry technology of the casting " Klínová koncovka KN10". The paper also includes a complex comparison of the current and new technology production with related problems and their solutions.
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Measurement and checking of dimensions in grinding operations
Kovařík, Michael ; Varhaník, Matúš (referee) ; Trčka, Tomáš (advisor)
The bachelor thesis deals with the topic measurement and checking of dimensions in grinding operations. To introduce the issue there is in the introductory part of the work a brief characteristic and distribution of particular finishing operations. Emphasis is put on grinding that is the main subject of this work. In connection with grinding there are mentioned mainly basic abrasive materials and achieved parameters of ground surface. Then the work focuses on measuring instruments that are used for evaluating surface structure, gauges that are used for measuring and controling longitudinal dimensions and on basic distribution and description of chosen jigs. In another part are introduced conditions for operator qualifications in the are of grinding technology. In conclusion of this work is chosen a component on which is applicated chosen grinding, the solution is analytical. After it follows evaluation.
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Measurement and checking of dimensions in grinding operations
Kovařík, Michael ; Varhaník, Matúš (referee) ; Trčka, Tomáš (advisor)
The bachelor thesis deals with the topic measurement and checking of dimensions in grinding operations. To introduce the issue there is in the introductory part of the work a brief characteristic and distribution of particular finishing operations. Emphasis is put on grinding that is the main subject of this work. In connection with grinding there are mentioned mainly basic abrasive materials and achieved parameters of ground surface. Then the work focuses on measuring instruments that are used for evaluating surface structure, gauges that are used for measuring and controling longitudinal dimensions and on basic distribution and description of chosen jigs. In another part are introduced conditions for operator qualifications in the are of grinding technology. In conclusion of this work is chosen a component on which is applicated chosen grinding, the solution is analytical. After it follows evaluation.
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Proposal of casting technology for cooper alloy castnig with regard to their quality and productivity of fininishing oprations
Herzán, Jiří ; Lána, Ivo (referee) ; Roučka, Jaromír (advisor)
This paper is created based on the real situation in Armatmetal s.r.o. Based on customer requirements and possible reduction of finishing operations at the end of production in the foundry. The foundry technology of gravity casting into sand molds is changed to gravity casting into metal mold. To change technology at Armatmetal s.r.o. two types of castings were selected. The "Kloub 55 s vidlicí" casting was selected by the customer to test the new technology. Casting "Klínová koncovka KN10" was chosen by Armatmetal s.r.o. because of the structural design of the casting and the high repeatability of production. Castings are the subject of the paper. The diploma thesis includes methods of solving the elimination of foundry defects occurring on a complicated casting " Kloub 55 s vidlicí". The main aim of the thesis is to assess the technical-economic contribution of the change of foundry technology of the casting " Klínová koncovka KN10". The paper also includes a complex comparison of the current and new technology production with related problems and their solutions.
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