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基于NC加工的金属原型快速制造工艺策略张鹏,程永奇摘 要:对目前金属原型制造技术的RP,RT和NC技术进行了比较,认为基于NC加工是原型快速制造的一个有效补充.对采取NC加工整体材料快速制造金属原型的关键工艺问题进行分析,提出了具体的流程和解决方案.用实例说明RP,RT和NC加工这三种方法是互为补充的原型快速制造方法.关键词:金属原型;快速制造;数控加工;工艺策略;......
="ChDivSummary" name="ChDivSummary">The spring-back of a bending metal tube was studied through extensive experiments and finite element method (FEM) analysis. An approximate equation for the spring-back angle of bending was deduced. It is noted that the mechanical properties of the material (in a tubular form) are quite different from those found in the standard tensile tests (when the materials......
Article ID: 1003-6326(2005)02-0221-04 Preparation of textile preform with sewing machines and bending properties of stitched woven glass fibre fabrics ZHAO Nuo-ping, , C.Herzberg (Institute... are generally used in the clothing industry, are also suitable for the processing of the reinforced fabrics. This study aims also to the changes of property arising from the sewing process. Bending......
J. Cent. South Univ. (2019) 26: 196-206 DOI: https://doi.org/10.1007/s11771-019-3993-y Bending performance of TRC-strengthened RC beams with secondary load under chloride erosion YU Yu-lin(余玉琳)1... and corrosion resistance and it is suitable for repairing and reinforcing concrete structures in harsh marine environments. The four-point bending method was used to analyze the influence of the salt......
. Significance-based optimization of processing parameters for thin-walled aluminum alloy tube NC bending with small bending radius [J]. Transactions of Nonferrous Metals Society of China, 2012, 22(1): 147-156...Trans. Nonferrous Met. Soc. China 27(2017) 1498-1506 Influence of heat treatment conditions on bending characteristics of 6063 aluminum alloy sheets Zhi-wen LIU1,2, Luo-xing LI1,2, Jie YI1, Shi-kang......
数控机床超声检测附件NC代码提取技术张宗健,张吉堂,张鹏中北大学机械与动力工程学院摘 要:超声检测附件是数控机床超声检测系统的核心组成部分,要实现数控机床超声自动检测,关键是编制出符合检测要求的附件NC代码.数控机床超声检测系统在检测时采用附件运动与机床运动在时间上同步的方法,为了实现该同步,可手工编写附件NC代码,但即使面对简单的被检工件,编程时也存在计算量大,效率低,精确度不高等问题.为此,着重研究分析附件NC代码后对其进行了规范,提出了以机床NC代码为基础的附件NC代码提取技术,并采用编译器设计原理和正则表达式匹配技术,设计开发了附件NC代码提取器.关键词:数控机床;超声检测;NC代码;提取技术;编译技术;......
. Experimental study on thinning of thin-walled tube NC bending process with small bending radius[J]. Forging & Stamping Technology, 2007, 32(5): 58-62. [10] 寇永乐, 杨 合, 詹 梅, 岳永保, 李 恒. 薄壁管数控弯曲截面畸变的实验研究[J]. 塑性工程学报, 2007, 14(5): 26-31. KOU Yong-le, YANG He, ZHAN Mei, YUE Yong-bao, LI Heng. Experimental study on cross-section distortion of thin-walled tube in NC bending process[J]. Journal of Plasticity......
Simulation and prediction in laser bending of silicon sheet WANG Xu-yue, XU Wei-xing, XU Wen-ji, HU Ya-feng, LIANG Yan-de, WANG Lian-ji Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian 116024, China Received 21 April 2010; accepted 10 September 2010 Abstract: The laser bending of single-crystal......
under small bending radii[J]. Journal of Materials Processing Technology, 2010, 210: 2273-2284. [8] LI H, YANG H, YAN J, ZHAN M. Numerical study on deformation behaviors of thin-walled tube NC bending..., ZICKE G, STUTTE G. Developments in NC-sheet metal bending, especially in NC-roll bending[J]. CIRP Annals-Manufacturing Technology, 1981, 30(1): 163-166. [21] HERMES M, CHATTI S, WEINRICH A, TEKKAYA......
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