Fabrication Of Cooling Jig Using Electro Discharge Machining (Edm)
For a high quantity production system such as PROTON, maintenance of equipments and related facilities at the production line is one of the critical factors to ensure the success of Just In Time system (JIT) and Synchronised System. A higher breakdown of equipments will affect the delivery to nex...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2002
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/12105/1/FK_2002_68_.pdf http://psasir.upm.edu.my/id/eprint/12105/ |
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| Summary: | For a high quantity production system such as PROTON, maintenance of equipments
and related facilities at the production line is one of the critical factors to ensure the
success of Just In Time system (JIT) and Synchronised System. A higher breakdown
of equipments will affect the delivery to next processes and uncertain level of quality.
This project focused on body assembly process where this process is the second
process in Proton cars manufacturing process. It features a mix of a variety type of
welding assembly jig, welding equipments, material handling equipments and robots.
A demand arises when the spare part of existing welding assembly jig - Cooling Jig is
not available and extensive maintenance is required in maintaining the Cooling Jig.
This project focus on re-modelled and fabrication of Cooling Jig. The fabrication
process needs information on surface data instead of detail drawing. But, the information such as surface data is not available in Jig Making & Maintenance (JMM)
section. The surface data is obtained thorough digitising process with coordinate
measuring machine and produced the Cloud point data in a neutral data format (ASCII
format). Then, Catia software was used to convert the file into DXF format. The
Cooling Jig's surface was obtained first before NC data conversion can be generated.
The fabrication of Cooling Jig is using EDM wire cut. Prior to machining, the Design
of Experiment (DOE) was used as a method to obtain the optimum machining time and
wire breakage without carrying numerous numbers of experiments at EDM Wire Cut
machine - R290P, Agie Charmilles.
As a result, the In-House fabrication process reduced almost 60 % fabrication cost if
outsourced and successfully forged a reverse engineering flows for JMM section. |
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