Vol: 33 , Nr: 3 , Art.: 6
Tytuł / Title:
Geometrical modeling of rotary milling operation of crankshaft pins
Autorzy / Authors:
PŁONKA Stanisław
PYTLAK Bogusław
PLACUCH Krzysztof
Akademia Techniczno-Humanistyczna; Wydział Budowy Maszyn i Informatyki; Katedra Technologii Maszyn i Automatyzacji
Słowa kluczowe / key words:
CAD modeling, rotary milling, crankshaft, internal milling head
Streszczenie / Summary:

The paper presents a geometrical modeling of roughing operation of a combustion engine’s
crankshaft pins using internal rotary milling method, i.e. with use of a milling head having its
cutting inserts inwardly directed. For this purpose a geometrical model of such machining operation
has been developed, i.e. the crankshaft and the milling head were modeled in CAD system.
The model of crankshaft-milling head system featured predefined suitable geometrical constraints
and determined mutual mobility of the both elements. Shape of the crankpin after rotary milling,
and thus as a consequence, accuracy of the machining operation, were determined in result of
performed simulation of this machining operation.