| ZUO Jun-yan,LIN You-xi,HE Ming.Tool Wear Mechanism Based on Adhesion Characteristics[J],48(7):364-370 |
| Tool Wear Mechanism Based on Adhesion Characteristics |
| Received:November 05, 2018 Revised:July 20, 2019 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2019.07.042 |
| KeyWord:beryllium copper cemented carbide tool high speed milling adhesion characteristics |
| Author | Institution |
| ZUO Jun-yan |
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou , China |
| LIN You-xi |
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou , China |
| HE Ming |
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou , China |
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| Abstract: |
| The work aims to analyze the internal relations among the adhesion characteristics, processing system and tool damage to satisfy the increasingly prominent processing needs of beryllium copper. The multidimensional orthogonal test method was adopted to analyze the internal relations between the morphology of the tool's contact surface and force fluctuation by establishing the mechanical force model of the tool’s microscopic crystal. The wear, milling characteristics and bonding process of the tool were analyzed from the force, spectrum analysis and adhesive form, and the tool surface and the morphology of the adhesive after wear were classified and characterized by scanning electron microscope. The adhesion in machining increased with the increase of tool diameter at the same cutting speed, and the processing parameters were only significantly changed to Fx due to the different force environment of tool adhesive before and after milling. By contrasting the form of adhesive and tool damage and the tool morphology under different processing parameters, the surface form of tool adhesive, wear, breakage and falling was considered. Unstable adhesion process had certain protective effect at the beginning of the processing, but as the adhesive increased continuously, the lateral force of adhesive also increased, which increased the actual damage to the tool. Adhesion property is an important factor affecting tool life in the actual processing, and the mutual interference of impact and wear frequency increases the effect of adhesive property on tool wear in the actual processing. |
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