Vol.11, No 1, 2013 pp. 45-54
UDC 621.74:004.92
DEVELOPMENT OF METHOD FOR REVERSE ENGINEERING IN CREATION OF 3D CAD MODEL OF KNEE IMPLANT
Aleksandar Rajic1, Eleonora Desnica2, Slobodan Stojadinovic2, Dorian Nedelcu3
1Technical College of Applied Sciences, Zrenjanin, Serbia
2University of Novi Sad, Technical Faculty ″Mihajlo Pupin″, Zrenjanin, Serbia
3Eftimie Murgu″ University of Resita, Romania
The paper gives a description of the Reverse Engineering technology application procedure for the creation of 3D CAD model of femoral component of total knee endoprothesis based on available meltable wax model for investment casting. Once CAD data record is accepted it presents an information management center for its geometry throughout the lifetime of the knee implant component. Thus, in the case a change in the component construction should be made, it can be managed quickly and consistently made available for all CAx-tools which accompany the product development. The procedure is defined within the work conducted in the international IPA cross-border cooperation project Romania-Republic of Serbia where the Reverse Engineering technologies and Additive Manufacturing (AM) are studied.
Key words: Reverse Engineering, Meltable Wax Model, Investment Casting, 3D CAD model, Knee Endoprothesis
RAZVOJ METODA REVERZNOG INŽENJERSTVA U KREIRANJU 3D CAD MODELA IMPLANTATA KOLENA
U radu je opisana procedura primene tehnologije reverznog inženjerstva za kreiranje 3D CAD modela femoralne komponente totalne endoproteze kolena, na bazi postojećeg topljivog modela za precizno livenje. Kada se jednom prihvati CAD zapis podataka, on će tokom čitavog životnog ciklusa komponente implantata kolena, predstavljati središte za upravljanje informacijama o njegovoj geometriji. Tako se promene u konstrukciji komponente, u slučaju potrebe, mogu provesti brzo i za sve CAx-alate koji prate razvoj proizvoda stajati konzistentno na raspolaganju. Procedura je definisana u okviru rada na međunarodnom IPA projektu prekogranične saradnje Rumunija – Republika Srbija, u kojem se proučavaju tehnologije reverznog inženjerstva i aditivne proizvodnje.
Ključne reči: reverzno inženjerstvo, topljivi model, precizno livenje, 3D CAD model, endoproteza kolena