Research on the mechanism of milling surface waviness formation in thin-walled blades

Lin, Xin; Wu, Dongbo; Yang, Biying; Wu, Gang; Shan, Xiufeng; Xiao, Qun-Bao; Hu, Liangyi; Yu, J.

doi:10.1007/s00170-017-0669-3

Cited by 19 publications

(3 citation statements)

References 16 publications

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“…Ahmadi [55] compared a Finite Strip Model (FSM), FEM analysis and a semi-analytical model for the study of the dynamics of thin-wall machining (Figure 9). Lin et al [56] studied the FRF of the machining system and related the waviness of the part with the force vibrations and not to the self-exited vibrations.…”

Section: Computational Solutionsmentioning

confidence: 99%

Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches

et al. 2019

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Thin-wall parts are common in the aeronautical sector. However, their machining presents serious challenges such as vibrations and part deflections. To deal with these challenges, different approaches have been followed in recent years. This work presents the state of the art of thin-wall light-alloy machining, analyzing the problems related to each type of thin-wall parts, exposing the causes of both instability and deformation through analytical models, summarizing the computational techniques used, and presenting the solutions proposed by different authors from an industrial point of view. Finally, some further research lines are proposed.

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Section: Computational Solutionsmentioning

confidence: 99%

Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches

et al. 2019

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“…Blades are some of the key parts for the improvement of the performance and service life of a jet engine [1]. Near-net-shaped jet engine blades, such as precision forged blades without margins or precision casted blades without margins, can directly form the complex curved surfaces of blades, which eliminates the material removal of the blade surface.…”

Section: Introductionmentioning

confidence: 99%

Research on machining error transmission mechanism and compensation method for near-net-shaped jet engine blades CNC machining process

Wang

Yu³

2021

Int J Adv Manuf Technol

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This study proposes an adaptive CNC machining process based on onmachine measurement to control the machining error of near-net-shaped blades. The multi-source and multi-process machining error transmission model of a near-netshaped blade is established, and the reduction effect of the machining error transmission chain by the adaptive CNC machining process is qualitatively analyzed based on the machining error transmission flow model. The effects of the adaptive CNC machining process on the positioning benchmark error, machining position error, and machining contouring error are explored based on an experiment for the adaptive CNC machining process. In particular, the ability of the adaptive CNC machining process to cooperatively control the blade position error and the contouring error is discussed in relation to the stiffness of the blade-fixture system. The results show that the adaptive CNC machining process can reasonably reduce the machining errors caused by the positioning benchmark. The final deviation band of the blade body is reduced by 60% based on this adaptive CNC machining process. The adaptive CNC machining process can optimize the contouring error and the position error of the blade tenon root with only the stiffness of the blade-fixture system prerequisite being ensured. The adaptive CNC machining process has the excellent ability to control machining errors to improve the machining quality of the blade.

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“…In this 2 of 11 case, the applied force is studied to reduce the dynamic deflection of the part. On the other hand, quasi-static deflection can take place when the elastoplastic behaviour of the workpiece, combined with a failure on the clamping, is not enough to counter the machining force effect, reducing the real depth of cut [15][16][17]. This fact was proved experimentally by Yan et al [18], who optimized the depth of cut depending on the cutting force, reducing the part deflection and increasing the process efficiency.…”

Section: Introductionmentioning

confidence: 99%

Effects of Machining Parameters on the Quality in Machining of Aluminium Alloys Thin Plates

Sol

Rivero

Gámez

2019

Metals

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Nowadays, the industry looks for sustainable processes to ensure a more environmentally friendly production. For that reason, more and more aeronautical companies are replacing chemical milling in the manufacture of skin panels and thin plates components. This is a challenging operation that requires meeting tight dimensional tolerances and differs from a rigid body machining due to the low stiffness of the part. In order to fill the gap of literature research on this field, this work proposes an experimental study of the effect of the depth of cut, the feed rate and the cutting speed on the quality characteristics of the machined parts and on the cutting forces produced during the process. Whereas surface roughness values meet the specifications for all the machining conditions, an appropriate cutting parameters selection is likely to lead to a reduction of the final thickness deviation by up to 40% and the average cutting forces by up to a 20%, which consequently eases the clamping system and reduces machine consumption. Finally, an experimental model to control the process quality based on monitoring the machine power consumption is proposed.

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Research on the mechanism of milling surface waviness formation in thin-walled blades

Cited by 19 publications

References 16 publications

Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches

Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches

Research on machining error transmission mechanism and compensation method for near-net-shaped jet engine blades CNC machining process

Effects of Machining Parameters on the Quality in Machining of Aluminium Alloys Thin Plates

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