Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第17卷    第6期    总第99期    2007年6月

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文章编号:1004-0609(2007)06-0878-07
往复式喷射成形管坯沉积特性及运动参数优化
马万太1, 宋红媛1 , 张 豪2, 张 捷3

(1. 南京航空航天大学 机电学院,南京 210016;
2. 上海交通大学 金属基复合材料国家重点实验室,上海 200030;
3. 张家港华通喷射成形有限公司,张家港 215625
)

摘 要: 介绍基底往复式喷射成形制备大壁厚管坯的工艺原理。研究单层沉积轨迹特性及其数学模型,针对沉积轨迹螺旋特性,分析基底运动参数(ω, v)对单层沉积特性的影响。建立多旋转周期沉积轮廓叠加的单层沉积厚度模型,利用该模型在不同沉积轨迹螺距下,对沉积厚度进行计算仿真,获得保证均匀沉积面的运动参数优化条件。在此基础上,提出单层沉积厚度的简易计算方法,并通过实验进行了验证,测量结果与预测值一致性较好。将研究结果用于实际喷射成形管坯生产中,制备得到表面形貌良好、性能稳定的管坯。

 

关键字: 管坯;往复式喷射成形;参数优化;沉积轨迹;沉积层厚度

Deposition behavior and movement parameters optimization for
reciprocating spray forming tubular
MA Wan-tai1, SONG Hong-yuan1, ZHANG Hao2, ZHANG Jie3

1. College of Mechanical and Electrical Engineering, Nanjing University of Astronautics and Aeronautics,
Nanjing 210016, China;
2. State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200030, China;
3.. Zhangjiagang Huatong Spray Forming Co. Ltd., Zhangjiagang 215625, China

Abstract:Process principle of reciprocating spray forming large thickness-wall tubular was analyzed. Behavior of the deposit track and corresponding model of single layer were studied. Aiming at the helix characteristic of the deposit track, the influences of mandrel movement parameters (ω, v) on the deposit behavior were analyzed. A model used to simulating the deposit thickness overlapped by the deposit profiles of multiple circumrotate cycles was established. This model was applied to simulate the deposit thickness with different pitch of the deposit track, and the optimum condition of movement parameters was obtained under which homogeneous deposit surface can be prepared. Based on the above optimum condition, a simple method was presented to calculate the deposit thickness and was verified through spray experiments. It is indicated that the simulated values are in agreement with the measurements. The results were applied in spray forming tubular, and a serial of tubular with good profile and stable performance were prepared.

 

Key words: tubular; reciprocating spray forming; parameters optimization; deposit track; deposit thickness

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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