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彈性磁力工具拋光鈦合金葉片葉根
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作者單位:

1.南京航空航天大學 機電學院，江蘇 南京 211106;2.清華大學 機械工程系，北京 100084

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基金項目:

國家自然科學基金聯(lián)合基金 (No. U20A20293)


Polishing of Titanium Alloy Blade Root with Elastic Magnet-ic Tool
Author:
Affiliation:

1.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;2.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

Fund Project:

Joint Funds of the National Natural Science Foundation of China (U20A20293)

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    摘要:

    針對鈦合金葉片葉根區(qū)域銑削紋理難去除、拋光工具與工件易干涉等問題，提出彈性磁力小工具頭拋光工藝，實現(xiàn)葉片葉根區(qū)域的光整加工。采用有限元軟件 ANSYS Maxwell 仿真不同磁極極向排布對磁場分布狀態(tài)的影響，比較了彈性和非彈性磁極載體對磁力小工具頭拋光葉片葉根的效果；通過正交實驗法優(yōu)化了彈性磁力小工具頭拋光葉片葉根的工藝參數(shù)。結果表明：與非彈性磁性拋光工具相比，采用聚氨酯作為磁極載體的彈性磁力工具可以有效提高被拋光工件的表面質量。采用最佳加工參數(shù)（主軸轉速=900 r/min、進給速度=6 mm/min、加工間隙=1.5 mm以及磨料粒徑=10~14 μm）對葉片進行拋光實驗，葉片葉根處原有的銑削加工紋理被有效去除，表面粗糙度由拋光前的0.95 μm降至0.12 μm。驗證了彈性磁力小工具頭拋光工藝對實現(xiàn)高質量鈦合金葉片葉根表面光整加工的可行性。

    Abstract:

    Removal of milling marks at the root fillet of titanium alloy blade is a tough work because of the interference between the polishing tool and the workpiece. A polishing method based on elastic magnetic tool was proposed. The software ANSYS Maxwell was used to simulate the effect of different pole orientation arrangements on the magnetic field distribution. A comparison of polishing effect was made between elastic and inelastic magnetic pole carriers. The processing parameters of the elastic magnetic tool polishing for the blade root were optimized by orthogonal experiment (Taguchi) method. Results show that compared with the inelastic magnetic polishing tool, the elastic magnetic polishing tool with polyurethane as the pole carrier can effectively improve the surface quality of the polished workpiece. Under the optimal processing parameters (rotational speed=900 r/min, feeding rate=6 mm/min, machining gap=1.5 mm and abrasive size=10?14 μm), the original milling marks at the blade root are effectively removed and the average surface roughness Ra is dropped from 0.95 μm to 0.12 μm, which verifies the feasibility of the elastic magnetic polishing tool in the surface finishing of the titanium alloy blade root.

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徐成宇,季冬峰,張云,朱永偉.彈性磁力工具拋光鈦合金葉片葉根[J].稀有金屬材料與工程,2024,53(9):2413~2419.[Xu Chengyu, Ji Dongfeng, Zhang Yun, Zhu Yongwei. Polishing of Titanium Alloy Blade Root with Elastic Magnet-ic Tool[J]. Rare Metal Materials and Engineering,2024,53(9):2413~2419.]
DOI：10.12442/j. issn.1002-185X.20230806

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  • 收稿日期:2023-12-12
  • 最后修改日期:2024-04-17
  • 錄用日期:2024-04-18
  • 在線發(fā)布日期: 2024-09-12
  • 出版日期: 2024-09-04