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Peninsula Technikon Theses & Dissertations Theses & Dissertations
1-1-2004
A feasibility study of manufacturing methods for large size moulds
Wanjun Li
Peninsula Technikon
Recommended Citation
Li, Wanjun, "A feasibility study of manufacturing methods for large size moulds" (2004). Peninsula Technikon Theses & Dissertations. Paper 40. http://dk.cput.ac.za/td_ptech/40
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PENINSULA
TECHNIKON
FACULTY OF ENGINEERING
A FEASIBILITY STUDY OF MANUFACTURING METHODS FOR LARGE SIZE MOULDS
WANJUNLI STUDENT NUMBER: 200206140
Submitted towards the Master of Technology Degree (Mechanical Engineering)
2004
Supervisor: H. C. Bowles, M. Sc. Eng.Mech. (UCn Co-Supenisor: W. P.Mitchell, B. Eng.Mech. (pret), Dip. Datametrics (UNISA), Pr. Eng, GCC (Factories)
ii
ABSTRACT
Most very large moulds are manufactured in Europe, especially in Germany and Italy. The main reason being that South Africa does not have enough very large size CNC machines on which these could be machined. A large size mould half can be split into two or more smaller parts for machining purposes and then reassembled later. In this way many large size moulds, especially rotational moulds can be manufactured on medium size CNC machines. Since the large component has been split into small parts, these can be distributed to different subcontractors to machine simultaneously, and thereby reducing the total manufacturing lead-time. The project then uses three case studies to advance the proposed concept for mould manufacture. A small size rotational mould for a model drum is manufactured to confirm that Pentech had both the