(friction stir welding, FSW) 1991 (The Welding Institute, TWI)

Transkrypt

1 Welding Technology Vol.40 No.12 Dec : X(2011) ( ) ; ; 3. : : ; ; ; : TG453.9 : B 0 (friction stir welding FSW) 1991 (The Welding Institute TWI) [1] [2] [2] : (1) ; (2) ; (3) 1 1 FSW ; : (z )

2 [7] 2 1 : (1) ; (2) z ; (3) : ; ; ; x Fz x Fx/kN Fz T Fx /s 2 [3-4] ; [5] x y I/O PLC 3 ; [6] 2 V/F T/(N m) x y z MM D PC PC CNC 3 USB RS485 PCI z

3 Welding Technology Vol.40 No.12 Dec Gπtd rad/(n m) Gπtd 3 2 : RS485 ; f f 5 50 ms 30~100 Hz mm/min mm t d L 5 E fmax : 1 ff L; 2 d t d t L d t fmin t z 0.01 mm : p a = T s G f f f 60f max (1) : T s ; G f ; f max P1082 /Hz Eπtd μm/n Eπtd L N/m 1/L Eπtd rad/(n m) Eπtd 3 2 8L N m/rad d/2l 8(1+μ)L N m d=85 mm t=5 mm L=30 mm E=206 GPa μ=0.3 /kn 0~30 /μv/v /N m 0~100 <0.2%FS / -10~80 <0.5%FS /μv/v Hz A B /s tr Tri d 4L(1+μ)

4 A B A B A B : Distributed GUI G f d AB =d A +d B = t r [ 1 60f max 2 (f f-f min )+f min ] (2) : t r =T f f -f min ri T ri x f f 0 [8] I/O : (1) ; (2) ; 6 (3) ; (4) y z I/O 3 : 7 4 QNX QNX POSIX [9] PC [ 10] PC Linux 6 FSW : [1] Friction stir welding [P ]. International patent application No. PCT/ 7

5 Welding Technology Vol.40 No.12 Dec : X(2011) CO 2 ( ) : VC MATLAB CO 2 VC : ; ; : TG409 : B 0 ; Mita ; DHCC-2 4 CO 2 CO 2 : [1] CO GB and great britain patent app lication No [2] Threadgill P L Nunn M E. A review of friction stir wdding: Part : Process review. Technical report[r]. The Welding Institute [3] Zhao Xin Kalya Prabhanjana G.Landers Robert et al. Design and implementation of nonlinear force controllers for friction stir welding processes[c]//proceedings of the 2007 American Control Conference : [4] William Russell Longhurst. Force control of friction stir welding [D]. Dissertation of Vanderbilt University for the Degree of Doctor of Philosophy [ 5] Tyler A Davis Yung C Shin and Bin Yao. Observer-based adaptive robust control of friction stir welding axial force [ J ]. IEEE/ ASME TRANSACTIONS ON MECHATRIONICS /TMECH [6] William Russell Longhurst Alvin M Sruauss George E Cook et al. Torque control of friction stir welding for manufacturing and automation [J]. Manuf Technol 2010 (51): [ 7] Alma H. Oliphant numerical modeling of friction stir welding: a comparison of ALEGRA and FORGE3 [C]//A thesis submitted to the faculty of Brigham Young University 2004: [8]. [J] (9): [9] Rober S J Shin Y C. Modeling and control of CNC machines using a PC-based open-architecture controller [J]. Mechatronics 1995 (5): [10]. Linux [D]. : : (1986 ) :.

6 Monitoring and control system for a friction stir welding process JIANG Mei-ling 12 WANG Min 1 and TIAN Feng-jie 3 (1.Shenyang Institute of Automation Chinese Academy of Science Shenyang Liaoning pro. China; 2.Graduate School of the Chinese Academy of Sciences Beijing China; 3.Shenyang Ligong University Shenyang Liaoning pro. China) P35-39 Abstract: Based on the analysis of FSW process intelligent monitoring and control system was designed which could improve the FSW automation degree and allow researchers to perform data analysis using statistical methods to model the process and provide a framework to develop the intelligent control algorithm. The system software was designed based on a hierarchical Open Systems Architectural design incorporating modularity interoperability portability and extensibility. Key words: friction stir welding monitoring and control system OSA welding automation Study on the performance of ceramic backing with different ratio of talc to feldspar WU Bin GUAN Wen-jing (Wuhan Boiler Group Valve Co. Ltd. Wuhan Hubei pro. China) P43-45 Abstract: The design principle of formula was discussed and the manufacture process of ceramic backing was introduced in the paper. Changing the ratio of talc to feldspar on the basis of ceramic welding backing formula (lithium-feldspar formula) through conducting the water absorption test sintering temperature and melting point test as well the welding process test in order to study the performance change of ceramic backing. The test results were analysed and discussed in the article. Key words: ceramic backing water absorption sintering temperature melting point welding process test Control on welding stresses and deformation of large-scale and complicated structure XU Long-yong XIA Zhong-jun (Eastern Heavy Machinery Co. Ltd. Weihai Shandong pro. China) P54-56 Abstract: During the process of manufacture of welding structure members of the large-sized or ultra-large type process equipment the focal point was controlling welding stresses and deformation. Case of transbeam of CNC Double Columns Vertical Turning & Milling Machine the writer analysed the manufacture factor and structure factor which impacted welding stresses and deformation of transbeam. According to the analysis the writer optimize technology of preparation assembly welding of every part of transbeam summarize proper technology ( including assembly reduction of heat input and non-uniform and welding technology) which could control welding stresses and deformation. The technology also could control the welding stresses and deformation of large-scale and complicated structure. Key words: large-scale structure welding stresses deformation control technique parts assembly