Dissertation > Excellent graduate degree dissertation topics show

Study on the Abrasive Flow Polishing Machine and Its Process Parameters

Author: ZhaoQiuLe
Tutor: XiaoDi
School: Chongqing University
Course: Mechanical and Electronic Engineering
Keywords: Abrasive Flow Polishing Hydraulic system AMESim simulation Particle force
CLC: TG580.692
Type: Master's thesis
Year: 2011
Downloads: 135
Quote: 0
Read: Download Dissertation

Abstract


Abrasive Flow Polishing (AFP) is a new finishing time processing method. AFP utilizes the flow characteristics of abrasive to process the workpieces with complex shape and spatial structure. AFP can also process metal and non-metallic materials, and can achieve good machining results. The main contribution of this thesis is as follows:First of all, the thesis analyzes the abrasive media’s local pressure drop and pressure drop. By analyzing the viscous fluid velocity distribution of the laminar viscous fluid movement in the pipe, the thesis presents the cutting edge model of abrasive particles, the force of abrasive model, and its effect on processing. The cutting edge model of the abrasive particle is given out. Based on this model, the performance improvement on the workpieces by the plastic deformation and elastic deformation of the workpieces is analyzed, and the generation of the cutting chip and the force model are analyzed.According to the mechanism of abrasive flow polishing, based on the actual use requirement, the thesis configures a polishing abrasive media, including silicone rubber as the carrier of abrasive, silicone oil as the lubricant, and silicon carbide as the abrasive particles. Finally, the effect of the abrasive flow polishing parameters is analyzed by considering the cutting chip and model.Considering all the factors, the thesis designs an AFP machine. Based on the overall design, the thesis concentrates on the detailed design of the AFP machine hydraulic system, including: according to the determined AFP machine system parameters, the polishing machine‘s kinematics and dynamic analysis are performed. The main parameters of the hydraulic system are calculated and the form of a hydraulic system is determined. The pusher cylinder and clamping force conditions are calculated. The basic scheme of the hydraulic system is designed and the hydraulic system diagram is drawn. The hydraulic system components and auxiliary systems are calculated and checked.The hydraulic system simulation model is analyzed briefly. AMESim software is utilized to construct the simulation model of the AFP machine and perform the corresponding test. According to the characteristics of the hydraulic system components, the sub-models and parameters are determined. Comparison of the clamping device open-loop control and PID control demonstrates that the open-loop system can not meet the design requirements of the system, and the PID control system should be selected.

Related Dissertations

  1. The Research on Hydraulic System of Two-roll Straightening Machine,TG333.23
  2. Analysis of mini-excavators closed center hydraulic system,TU621
  3. The Research and Manufacture of 200T Automatic Powder Metallurgy Press,TF37
  4. High-speed sampling device large inertia transition process dynamics analysis and research,TF513
  5. Study on Hydraulic Control System of the Sector Section Roll Gap of Continuous Casting,TF341.6
  6. Reconstructed Hydranlic System of the Multifunctional Crane Made in China,TF351
  7. Co-simulation of Wheel Loader Hydraulic System and Operation Mechnism,TH243
  8. 1200 tons automatic autoclaved fly ash brick molding equipment research and design of hydraulic systems,X705
  9. Study on Fault Diagnosis Expert System for Loader Hydraulic System,TH243
  10. The Design and Analysis of Hydraulic System for the Weapon Bay Door of an Aircraft,V223
  11. Design and Development of a Hydraulic Steering Gear Teaching Platform,U664.41
  12. Mechatronics and Hydraulics Integration Simulation of Lifting Actuator for Aerial Working Platform,TU69
  13. Research and Implementation of Key Technologies for Actuator Life Lengthening of Blast Furnace Hot Blast Stove,TF578
  14. Research on the Water Immersion Test System about the Downhole Tools,TE931.2
  15. Fault Diagnosis for the Molding Equipment with Rotating and Vibrating Type,TH165.3
  16. The Design and Analysis of Hydraulic System for the Weapon Bay Door of An Aircraft Based on AMESim,V223
  17. Study for Hydraulic Thrust System of Double Shield Tunneling Machine,U455.31
  18. Embankment slope compactors compaction device,U415.521
  19. Control System Design of Compression Garbage Truck,U469.691
  20. Research of Hydraulic Reciprocating Exploiting Viscous Crude Oil Device,TE933

CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Grinding and grinding machine > General issues > Grinding process > Polishing
© 2012 www.DissertationTopic.Net  Mobile