Ding Yuming
9 Papers
20 Citations
Ding Yuming is an academic researcher. The author has contributed to research in topics: Welding & Rotor (electric). The author has an hindex of 3, co-authored 9 publications.
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Papers
Patent
Method for testing microzone fracture toughness of material
Wu Haili,Ding Yuming,An Chunxiang,Liu Xia,Xia Jian,Ding Lifeng,Wang Peng +6 more
- 04 Jan 2017
TL;DR: In this article, a method for testing the microzone fracture toughness of a material was proposed, which comprises the following steps: preparing an ultrathin single-edge notched tensile (SENT) specimen; performing repeated loading and unloading operations on an in-situ tensile test machine; recording test load Fi, crack length ai and notch opening displacement Vi by virtue of a scanning electron microscope in-Situ test machine, calculating a Ki value for brittle material and calculating a Ji value for a ductile material; and drawing a K-a curve or
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Patent
Low-pressure turbine rotor and welding method thereof
Shen Hongwei,Liu Xia,Qiao Shangfei,Wang Peng,Ding Yuming,Yang Renjie,Wu Lingping,Fang Xu,Xin Huo +8 more
- 06 Feb 2013
TL;DR: In this paper, a low-pressure turbine rotor is formed by sequence-welding at least two rotor forging segments; and as each rotor forging segment is relatively small in size and lighter in weight, expensive oversize smelting equipment, external refining equipment, large scale forging equipment or heat treatment equipment is not required, and accordingly, the manufacturing cost of the turbine rotor can be effectively lowered.
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Patent
Iron-based alloy powder for laser remanufacturing repair and preparation method and application thereof
Yao Jianhua,Zhang Qunli,Wang Liang,Dong Gang,Chen Zhijun,Geng Guoqing,Shen Hongwei,Liu Xia,Qiao Shangfei,Ding Yuming,Li Yuyan +10 more
- 23 Aug 2019
TL;DR: In this article, an iron-based alloy powder for laser remanufacturing repair and a preparation method and application thereof is provided, a cladding layer with specificalloy elements, no pore crack defect and good performance can be obtained under wide process parameters.
3
Patent
Iron-based alloy powder for laser cladding as well as preparation method and application thereof
Yao Jianhua,Zhang Qunli,Wang Liang,Dong Gang,Chen Zhijun,Geng Guoqing,Shen Hongwei,Liu Xia,Qiao Shangfei,Ding Yuming,Li Yuyan +10 more
- 13 Sep 2019
TL;DR: In this article, an iron-based alloy powder for laser cladding as well as a preparation method and application thereof is presented, which is composed of the following components: 0.02%-0.05% of C, 0.8%-1.6% of Mn, 10.0%-12.5% of Mo, and the balance Fe.
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Patent
Method for predicting fatigue crack expanding threshold value under different stress ratios
Cai Zhipeng,Pan Jiluan,Li Yifei,Sun Lin Gen,Yang Renjie,Shen Hongwei,Wang Peng,Ding Yuming +7 more
- 30 Apr 2014
TL;DR: In this article, a method for predicting a fatigue crack expanding threshold value under different stress ratios was proposed, which comprises the steps of solving a linear fitting slope and a cross-over point of fatigue crack stable expanding area and near-threshold area data points on a log-log coordinate through the test data of the fatigue crack expansion threshold value.
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