REDESIGN, MANUFACTURING AND ANALIZE OF BORING TOOL ALTERNATIVE FOR BENCH VICE LIFTER HOUSING TYPE 125
This study deals with manufacturing processes of Bench Vice Lifter Housing which is done annualy as a POLMAN?s Standard Product. One of the main process is enlarging a casted 116 mm long cylindrical hole 57 mm diameter become 65 mm diameter using conventional Lathe machine Grazioli tipo Dania 18...
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| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/41257 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | This study deals with manufacturing processes of Bench Vice Lifter Housing
which is done annualy as a POLMAN?s Standard Product. One of the main
process is enlarging a casted 116 mm long cylindrical hole 57 mm diameter
become 65 mm diameter using conventional Lathe machine Grazioli tipo Dania
180.
Enlarge the hole machining operation still has some drawbacks. First, the size of
the holes on each product is not uniform due to difficulty setting depth of cut
chisel on boring tools tend to be the same, there is a difference both hole diameter
of 0.272 mm along the 116 mm chisel causes the wear rate is high because the
chisel is made of material HSS (High Speed Steel) so that machining operations
performed twice to achieve product specifications. This results in a low efficiency
of machining operations.
From the above conditions, the thesis is given Boring tool design alternatives that
can minimize these shortcomings by depth of cut is made permanent chisel, chisel
materials using carbide chisel and made a one-time cuts to achieve the product
specification.
The methodology applied in this research includes the study of the feasibility of a
lathe, boring tool performance assessment that is used today, boring tool design
stage and the last stage will be carried out stage of manufacture boring tool and
analysis of the results of the impact on the product.
The results of this study is a boring tool that can be used to reduce the machining
operation phases. Phase 2 operations previously requiring operation phase can be
reduced to one stage. It is expected to shorten the machining time, which used to
take 67 minutes machining time can be reduced to 3.7 minutes, narrowed the gap
to 0.02 mm diameter hole, and improve uniformity of hole size by an average of
0.01 mm. |
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