TCP-based calibration in robot-assisted belt grinding of aero-engine blades using scanner measurements

2016 ◽  
Vol 90 (1-4) ◽  
pp. 635-647 ◽  
Author(s):  
Xiaohu Xu ◽  
Dahu Zhu ◽  
Haiyang Zhang ◽  
Sijie Yan ◽  
Han Ding
Keyword(s):  
Robot Assisted ◽  
Belt Grinding ◽  
Aero Engine

Improving Efficiency in Robot Assisted Belt Grinding of High Performance Materials

2014 ◽  
Vol 907 ◽  
pp. 139-149 ◽  
Author(s):  
Eckart Uhlmann ◽  
Florian Heitmüller
Keyword(s):  
Gas Turbines ◽  
High Performance ◽  
Scale Effects ◽  
Turbine Blades ◽  
Repair Process ◽  
Industrial Robots ◽  
Robot Assisted ◽  
Belt Grinding ◽  
Economy Of Scale ◽  
The Individual

In gas turbines and turbo jet engines, high performance materials such as nickel-based alloys are widely used for blades and vanes. In the case of repair, finishing of complex turbine blades made of high performance materials is carried out predominantly manually. The repair process is therefore quite time consuming. And the costs of presently available repair strategies, especially for integrated parts, are high, due to the individual process planning and great amount of manually performed work steps. Moreover, there are severe risks of partial damage during manually conducted repair. All that leads to the fact that economy of scale effects remain widely unused for repair tasks, although the piece number of components to be repaired is increasing significantly. In the future, a persistent automation of the repair process chain should be achieved by developing adaptive robot assisted finishing strategies. The goal of this research is to use the automation potential for repair tasks by developing a technology that enables industrial robots to re-contour turbine blades via force controlled belt grinding.

Robot-assisted rotation-revolution belt grinding of cylinder optical element

2021 ◽  
Author(s):  
Bing Guo ◽  
Yilong Li ◽  
Quan Zheng ◽  
Shihui Wang ◽  
Qingliang Zhao
Keyword(s):  
Optical Element ◽  
Robot Assisted ◽  
Belt Grinding

scholarly journals Application of novel force control strategies to enhance robotic abrasive belt grinding quality of aero-engine blades

2019 ◽  
Vol 32 (10) ◽  
pp. 2368-2382 ◽  
Author(s):  
Xiaohu XU ◽  
Dahu ZHU ◽  
Haiyang ZHANG ◽  
Sijie YAN ◽  
Han DING
Keyword(s):  
Force Control ◽  
Control Strategies ◽  
Belt Grinding ◽  
Abrasive Belt ◽  
Aero Engine

Research on Path of Contact Wheel for Ruled Blade Grinding

2014 ◽  
Vol 536-537 ◽  
pp. 1343-1346
Author(s):  
Da Qi Li ◽  
Lei Zhang ◽  
Wei Dong Ye ◽  
Hai Ying Zu
Keyword(s):  
Belt Grinding ◽  
High Profile ◽  
Wind Generators ◽  
Aero Engine ◽  
Wrap Angle ◽  
Two Sides ◽  
Profile Accuracy ◽  
Grinding System ◽  
Selection Of

Blade is one of the important components in aero-engine, turbine, and wind generators. The quality of the blades has big influence on the performance of the machine. So high profile accuracy and low surface roughness were put forward. Ruled blade is just one of the blades of aero-engine, which has simple profile and little distort. This blade was grinded by two sides together in the paper. Therefore, in this thesis, the main objects are as fallow: firstly, according to the characteristics of the abrasive belt grinding, analysis the selection of grinding distance for the blade. Secondly, established the model of contact wheel compare grinding system, derived the range of wrap angle of contact wheel, and then two region were make out, one is the region can be directly grinding, and another region which may lead to wheel interference. At last the grinding path of the center of the contact wheel was obtained by calculated the blade model.

Analysis of vibration from low-rigidity contact in belt grinding of blisk blade

2019 ◽  
Vol 233 (12) ◽  
pp. 2345-2357 ◽  
Author(s):  
Guijian Xiao ◽  
Yun Huang ◽  
Ying Liu ◽  
Quan Li ◽  
Wentao Dai
Keyword(s):  
Process Parameters ◽  
Engine Performance ◽  
Grinding Process ◽  
Feed Speed ◽  
Technological Parameters ◽  
Belt Grinding ◽  
Cross Sectional ◽  
Aero Engine ◽  
The Stability ◽  
Grinding System

A blisk is one of the key parts of an aero-engine, whose surface processing quality directly affects aero-engine performance. Different degrees of vibration occur during the process of new open belt grinding which seriously affect the precision of the dimensions and the surface quality of the entire blade profile. With the aim of addressing this problem, this study constructed a physical model of blisk belt grinding, analysed the low-rigidity characteristics of the grinding system, and researched the vibratory mechanism of the blisk belt grinding system based on a dynamic analysis method. In addition, the factors affecting the stability of the grinding process and the stability conditions of the grinding were considered. Then, the belt grinding process of a blade surface was simulated through a numerical method. The technological parameters were quantified for different conditions of the blisk belt grinding vibration. The optimal combination of process parameters was obtained. Finally, the optimised process parameters were validated experimentally. The research demonstrates that vibration from blisk belt grinding is related to the process parameters as follows, in the order of the greatest influence: the grinding pressure, belt velocity, feed speed, and contact wheel hardness. After optimisation, the cross-sectional profile is 0.031–0.041 mm and the surface roughness is 0.1–0.2 μm; the surface is smoother and has better consistency.

On energetic assessment of cutting mechanisms in robot-assisted belt grinding of titanium alloys

2015 ◽  
Vol 90 ◽  
pp. 55-59 ◽  
Author(s):  
Dahu Zhu ◽  
Shiyuan Luo ◽  
Long Yang ◽  
Wei Chen ◽  
Sijie Yan ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Robot Assisted ◽  
Belt Grinding ◽  
Cutting Mechanisms

Bionic microstructure on titanium alloy blade with belt grinding and its drag reduction performance

2020 ◽  
pp. 095440542094974
Author(s):  
Guijian Xiao ◽  
Yi He ◽  
Yun Huang ◽  
Shui He ◽  
Wenxi Wang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Drag Reduction ◽  
Cfd Simulation ◽  
Dynamic Performance ◽  
Belt Grinding ◽  
Grinding Method ◽  
Aero Engine ◽  
Engine Blade ◽  
Bionic Structure ◽  
Set Up

Researches show that surface with bionic structure plays an important role in improving the aerodynamic performance on aero engine parts. Belt grinding, a popular method to process titanium alloy parts such as aero-engine blade, is also found that it can be used to obtain bionic microstructure through special grinding method and parameters. In order to explore the performance of bionic microstructure processed by belt grinding and its effects on airflow dynamics, several groups of simulation and an experiment are carried out in this paper. Firstly, the mechanism of drag reduction of bionic microstructure is discussed. It shows that the effect of drag reduction of bionic microstructure is related to protrusion height, which is related to the shape and size of the bionic microstructure. Then, three groups of typical belt grinding bionic microstructure are set up. In addition, the drag reduction values are calculated in CFD simulation. The results are analyzed and discussed. Further, to verify the airflow dynamics of drag reduction of belt grinding bionic microstructure, an experiment of aero-engine blade is carried out. Finally, the effects of airflow dynamic performance of blade with belt grinding bionic microstructure are obtained in CFD simulation. In general, the shape of wave ribs, compared to V-ribs and trapezoidal ribs, has the best performance in drag reduction. To a certain extent, the improvement of airflow dynamic performance is higher with the increasing of the size of bionic microstructure, which suggests lower feed rate and higher grinding pressure for bionic structure.

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