Research on flexible adaptive CNC polishing process and residual stress of blisk blade

Wu, Dongbo; Wang, Hui; Zhang, Kaiyao; Lin, Xin

doi:10.1007/s00170-019-03464-0

Cited by 17 publications

(6 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[26] It is the common residual stress generated from machining, polishing or heterogeneity. [27][28][29] Based on the analogy to stress corrosion cracking that is commonly seen in the combined action of a chemical reaction and local tensile stress, the local tensile stress in SSEs can lead to the crack propagation and then promote lithium dendrite growth. [18] On the contrary, the compressive stress, if it is high enough, can force the cracks generated by the dendrite to close up.…”

Section: Resultsmentioning

confidence: 99%

Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid‐State Electrolytes

Yao

Olsson

Wang

et al. 2022

Small

View full text Add to dashboard Cite

Solid‐state electrolytes (SSEs) have been thrust into the limelight for the revival of energy‐dense lithium metal batteries, but still face the challenge of failure caused by the dendrite penetration. Mounting evidence indicates that dendrite penetration is related to the mechanical failure in SSEs, which calls for mechanical engineering to tackle this problem. This work reports a proof of concept that ion implantation induced surface compressive stress enables resistance in the dendrite penetration. A deterministic sequential multiple ion energies implantation is used to generate compressive stress, with implanted Xe ions distributed in a range of 160–600 Å from the surface. The symmetric lithium cells show that pellets with an implantation dose of 1013 Xe cm−2 exhibit stable stripping/plating cycles and extended lifespan, while a lower dose of 1012 Xe cm−2 cannot create sufficient stress to prevent dendrite penetration, and an excessive dose of 1014 Xe cm−2 leads to structural destruction and a decrease in stress. This improved performance is attributed to the induced surface compressive stress balanced over crystal grains, which is confirmed by grazing incidence diffraction techniques. The author's efforts demonstrate the usefulness of surface compressive stress to suppress dendrite penetration, offering more insight into rational stress–strain engineering as opposed to empirical optimization.

show abstract

Section: Resultsmentioning

confidence: 99%

Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid‐State Electrolytes

Yao

Olsson

Wang

et al. 2022

Small

View full text Add to dashboard Cite

show abstract

“…Research studies on robot grinding are mainly composed of two aspects: mechanism design (Zhang et al , 2017) and grinding force control (Wen et al , 2014). In the process of robot grinding, the profile accuracy of the workpiece will decrease due to the fluctuation of normal grinding force (Wu et al , 2019). It is easy to damage the blades when the actual grinding force is greater than the expected value (Loris et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

Research on constant force grinding control of aero-engine blades based on extended state observer

Dai

Zhang

et al. 2022

View full text Add to dashboard Cite

Purpose Considering the influence of environmental noise and modeling error during the process of the robotic automatic grinding aero-engine blade, this study aims to propose a method based on the extended state observer (ESO) to reduce the fluctuation of normal grinding force. Design/methodology/approach First, the measurement range of the six-dimensional force sensor is calibrated according to the maximum acceleration of end-effector and grinding force. Second, the gravity and zero drift compensation model is built to compensate for measurement error. Finally, the switching function is designed based on the difference between the expected grinding force and the actual feedback value. When the value of function stays within the switching band, a nonlinear active disturbance rejection control (ADRC) loop is applied. When the function value reaches outside the switching band, an ESO-based sliding mode control (SMC) loop is applied. Findings The simulated and experimental results show that the proposed control method has higher robustness compared with proportion-integral-derivative (PID), Fuzzy PID and ADRC. Research limitations/implications The processing parameters of this paper are obtained based on the single-factor experiment without considering the correlation between these variables. A new control strategy is proposed, which is not only used to control the grinding force of blades but also promotes the development of industrial control. Originality/value ESO is used to observe environmental interference and modeling errors of the system for real-time compensation. The segment control method consisting of ESO-based SMC and ESO-based ADRC is designed to improve the robustness. The common application of the two parts realizes suppression of fluctuation of grinding force.

show abstract

“…In order to better study the residual stress of aircraft engine blades, Xian Chao et al [ 17 ] established a simple mathematical model of residual stress based on the force effect, thermal effect, and the coupled effect of force and heat and verified the accuracy of the model by experiments. Wu et al [ 18 ] established an empirical model of the surface residual stress based on the polishing process parameters and quantitatively analyzed the effect of the polishing process on deformation through finite element analysis and experimental testing. The results showed that this surface polishing process can effectively improve surface integrity.…”

Section: Introductionmentioning

confidence: 99%

Study on Residual Stress in Disc-Milling Grooving of Blisks

Xin

Xing²,

Dai³

et al. 2022

Materials

View full text Add to dashboard Cite

The disc-milling method is expected to increase the grooving efficiency of blisks. However, there are few studies about the residual stress on a blisk during disc-milling grooving. In this study, a single-factor experiment and an orthogonal experiment of blisk disc-milling and grooving were designed to obtain the residual stress. Surface subsurface residual stress were also studied. The results showed that the surface of the milling groove bore compressive stress. Residual stress decreased with increasing spindle speed and increased with increasing feed speed and spindle rotation angle. Moreover, residual stress was most sensitive to spindle rotation angle and least sensitive to feed speed. A higher residual stress produced on the machined surface led to a deeper layer of residual stress.

show abstract

Research on flexible adaptive CNC polishing process and residual stress of blisk blade

Cited by 17 publications

References 24 publications

Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid‐State Electrolytes

Xenon Ion Implantation Induced Surface Compressive Stress for Preventing Dendrite Penetration in Solid‐State Electrolytes

Research on constant force grinding control of aero-engine blades based on extended state observer

Study on Residual Stress in Disc-Milling Grooving of Blisks

Contact Info

Product

Resources

About