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|Title: ||粉末冶金螺旋齒輪模具設計與驗證;The Design and Verification of Helical Gear Mold by Powder Metallurgy|
|Keywords: ||粉末冶金;螺旋齒輪;油壓系統;磨耗;powder metallurgy;helical gear;hydraulic systems;wear|
|Issue Date: ||2016-03-17 20:49:35 (UTC+8)|
;The purpose of this paper is to improve the existing mechanism of powder metallurgy helical gear mold design. The helical gear mold of powder metallurgy due to excessive friction between the molds so that the mold life is too short. This paper is to solve the short life problem of helical gear mold of powder metallurgy that due to the friction.
In this paper, the use of actively driving the rotation of the mold to solve the problem of excessive friction of the mold. Proposed the use of a hydraulic system combines rotary motion relationship of the mold. The mold can be generated by hydraulic rotary and increasing the life of the mold.
This thesis designed two different forms of mechanism. Namely the use of flexible transmission drive mode and the flexible and rigid coupling. Design, manufacture and identify the problem through experimental verification.
To compare the difference between traditional design and new design, design an experimental test platform to simulate the relationship with the movement of the top punch and the mold of the powder metallurgy molding machine. Then the experimental test platform combined with the new design and traditional design. The experiment is to measure the wear by friction, and compare the difference between the two designs.
The experimental results show the wear of the new mold design is better than traditional mold design. The cumulative amount of wear of the new mold design is lower than 50% or more of the traditional mold design. The new mold design enhance the life of more than 2 times. In addition, without considering the additional cost of driving, the manufacturing cost of the new mold is lower than the traditional mold.
The above results confirm this thesis designed the new helical gear mold of powder metallurgy can replace the traditional mold design.
|Appears in Collections:||[機械工程研究所] 博碩士論文|
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