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Jednobodové tváření
Brabec, Martin ; Podaný, Kamil (oponent) ; Peterková, Eva (vedoucí práce)
Technologie inkrementálního tváření zažila v posledních letech období rozvoje a těší se zvýšenému zájmu ze strany průmyslu zejména kvůli svým jedinečným výhodám a vlastnostem. Tato práce překládá obecný přehled metod inkrementálního tváření se zaměřením na jednobodové tváření, doplněný o přehled používaných nástrojů, strojů a uplatnění jednobodového tváření v praxi.
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CNC Programming if the Single Point Incremental Forming
Ladecký, Tomáš ; Slaný, Martin (oponent) ; Píška, Miroslav (vedoucí práce)
Nowadays there is an increasingly demanding need for the development of agile manufacturing techniques that can easily be adaptable to a constant introduction of new products in the market. Single point incremental forming (SPIF) is a new innovative and feasible solution for the rapid prototyping and the manufacturing of small batch sheet parts. The process is carried out at room temperature (cold forming) and requires a CNC machining centre, a spherical tip tool and a simple support to fix the sheet being formed. This thesis provides a better understanding of the influence of the tool radius in the occurrence of fracture without previous necking or fracture following previous necking as in case of conventional stamping, which is a matter of ongoing international discussion around the formability mechanism of SPIF. It is also analyzed the influence of the corner radius in SPIF made parts and a new pyramid test was created in order to get strain measurements in a large area of the first quadrant of the principal strain space and as consequence to reduce the overall number of tests. The previous results of Skjoedt [1] showing that the fracture forming limit determined under simple (monotonic) strain paths can be applied to check formability limits in multi-stage SPIF were confirmed and the difference in formability between the AA1050-H111 and the same material annealed was checked. Finally, as a logical continuation of the experimental work previously performed, the thesis was extended to multi-stage SPIF with the objective of replacing conventional fabrication procedures by new manufacturing routes based on single point incremental forming. The main contribution of this thesis to multi-stage SPIF was the successful manufacturing of a pyramid with vertical walls and the production of a prototype part for a home appliance application.
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Jednobodové tváření
Brabec, Martin ; Podaný, Kamil (oponent) ; Peterková, Eva (vedoucí práce)
Technologie inkrementálního tváření zažila v posledních letech období rozvoje a těší se zvýšenému zájmu ze strany průmyslu zejména kvůli svým jedinečným výhodám a vlastnostem. Tato práce překládá obecný přehled metod inkrementálního tváření se zaměřením na jednobodové tváření, doplněný o přehled používaných nástrojů, strojů a uplatnění jednobodového tváření v praxi.
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CNC Programming if the Single Point Incremental Forming
Ladecký, Tomáš ; Slaný, Martin (oponent) ; Píška, Miroslav (vedoucí práce)
Nowadays there is an increasingly demanding need for the development of agile manufacturing techniques that can easily be adaptable to a constant introduction of new products in the market. Single point incremental forming (SPIF) is a new innovative and feasible solution for the rapid prototyping and the manufacturing of small batch sheet parts. The process is carried out at room temperature (cold forming) and requires a CNC machining centre, a spherical tip tool and a simple support to fix the sheet being formed. This thesis provides a better understanding of the influence of the tool radius in the occurrence of fracture without previous necking or fracture following previous necking as in case of conventional stamping, which is a matter of ongoing international discussion around the formability mechanism of SPIF. It is also analyzed the influence of the corner radius in SPIF made parts and a new pyramid test was created in order to get strain measurements in a large area of the first quadrant of the principal strain space and as consequence to reduce the overall number of tests. The previous results of Skjoedt [1] showing that the fracture forming limit determined under simple (monotonic) strain paths can be applied to check formability limits in multi-stage SPIF were confirmed and the difference in formability between the AA1050-H111 and the same material annealed was checked. Finally, as a logical continuation of the experimental work previously performed, the thesis was extended to multi-stage SPIF with the objective of replacing conventional fabrication procedures by new manufacturing routes based on single point incremental forming. The main contribution of this thesis to multi-stage SPIF was the successful manufacturing of a pyramid with vertical walls and the production of a prototype part for a home appliance application.
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