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Journal articles on the topic 'Hemming'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Wan, Zi Gang. "Design and Simulation of the Robot Flexible Roller Hemming System." Applied Mechanics and Materials 602-605 (August 2014): 997–1000. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.997.

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The roller hemming system could be verified before it is put into operation by virtual manufacturing technology. This paper analyses roller hemming process, establish roller hemming system 3D models, include roller hemming tool system, roller hemming fixtures system and roller hemming robot. Finally verify the reasonableness of roller hemming system based on DELMIA.

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2

Hönle, Severin, and Mathias Liewald. "Experimental Investigation of Energy Savings during Table-Top Hemming of Aluminum Alloys." Key Engineering Materials 611-612 (May 2014): 947–54. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.947.

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The organization of workflow and design of tools and processes in automotive manufacturing will become even more dominated by topics of energy efficiency due to increasing environmental requirements in the future. From this point of view a detailed analysis of all manufacturing processes in the body shop, taking into account the reduction of energy consumption and required area covered by equipment, is necessary. In automotive manufacturing welding and gluing processes as well as metal forming processes are commonly used for joining of single parts to an assembly group, such as doors or closur

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3

Yun, Shi Zhi, Yu Liu, Yu Shi Jian, Peng Chao Yang, and Wang An Bing. "Warp Phenomenon Analysis in Hemming Process of Autobody Panel." Applied Mechanics and Materials 66-68 (July 2011): 545–50. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.545.

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In this paper, the hemming process, which widely used in automobile industry, was studied by a method of constructing mechanical models combined with FEM simulation results. The warp producing mechanism in the straight edge- plane hemming process was analyzed in detail using this mechanical model. The reason why the warp produced at the position of near the contact point between the out panel and the position surface of hemming die during the pre-hemming process, and the phenomena of warp reducing firstly and then increasing before the position point T and the warp reducing again after point T

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4

Zubeil, Martin, Karl Roll, and Marion Merklein. "Improved Roller Hemming System for High Volume Part Production." Key Engineering Materials 473 (March 2011): 168–75. http://dx.doi.org/10.4028/www.scientific.net/kem.473.168.

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Roller hemming is usually applied for hang-on-parts such as hoods, doors or trunk-lids which all have complex non-linear geometries. The flange is often hemmed along both surfaces and edges which have 3D curvilinear shapes. Minimization of hemming defects and the requirement to improve cycle time of the roller hemming process are essential for roller hemmed hang-on-parts in the automotive industry. Different systems such as the driven roller hemming provide the possibility to increase the strain rate without loosing surface quality and dimensional stability. Investigating the influence of fric

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5

Wang, Jian Qiang, Ya Wen Huang, Guang Rui Zhou, Zhao Long Niu, and Zi Wen Cheng. "Process Parameters Study on Robot Rope Hemming of the Hood." Applied Mechanics and Materials 602-605 (August 2014): 950–53. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.950.

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According Robot roller hemming is known as an assembly method with high flexibility and automated rate for closures in automotive bodies. The hemming tool is manipulated by controlling the industrial robot to complete the formation of closures (i.e. doors, hoods, tailgates and trunklids). In this paper, we shall first briefly introduce the rope hemming process, detail on the impact of process parameters on the rope height, roll-in and roll-out with the FEA model to simulate the rope hemming process. Then the rope hemming defects are discussed in later sections. This paper studies the process p

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6

Lewis, W. "Colin Hemming." BMJ 349, sep02 4 (2014): g5364. http://dx.doi.org/10.1136/bmj.g5364.

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7

Lin, Ju Guang, Er Wei Wang, and Guang Rui Zhou. "Hemming Process Simulation of Table-Top Hemming Machine." Applied Mechanics and Materials 644-650 (September 2014): 2177–80. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.2177.

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Influence of different pre-hem paths on the flange geometry was studied first. According to the results of simulation the vertical pre-hem path was applied. Effects of the process parameters including pre-hem angle, flange length and friction coefficient on Roll-in/out were also investigated in this paper. Results of the simulations show that roll-in values decrease with pre-hem angle increasing and increase with flange length and friction coefficient increasing. And in the case of 6×45° leads least hemming force.

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8

Sun, Yue Dong, and Hua Hui Wu. "A Study on the Dimension of Vehicle Closure Hemming Components." Advanced Materials Research 482-484 (February 2012): 895–99. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.895.

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Based on the manufacturing system of car body , the dimensional requirement of hemming components has been concluded in this article. The function of hemming master control points, and the geometry dimension of the hemming die has also been accountted for here.

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9

Huang, Yi-Ping, Bor-Tung Jiang, Chia-Hung Wu, and Jen-Yuan Chang. "Vision-Based Path Guidance to Achieve Dies-Free Roller Hemming Process." Applied Sciences 11, no. 12 (2021): 5741. http://dx.doi.org/10.3390/app11125741.

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Due to its high production flexibility, roller hemming has become the mainstream process for forming and joining metal sheets in the automotive industry. The traditional roller hemming process requires specific dies to support sheet metal parts and repeated offline manual adjustment of hemming routes, resulting in high die costs, high time consumption, and excessive labor inputs. The universal platform presented in this paper could replace specific dies to effectively reduce costs and expand production flexibility. To reach this objective, a vision-based automatic compensation path to achieve

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10

Lin, G., K. Iyer, S. J. Hu, W. Cai, and S. P. Marin. "A computational design-of-experiments study of hemming processes for automotive aluminium alloys." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 219, no. 10 (2005): 711–22. http://dx.doi.org/10.1243/095440505x32661.

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Hemming is a three-step sheet-folding process utilized in the production of automotive closures. It has a critical imact on the performance and perceived quality of assembled vehicles. Using a two-dimensional finite element model, this paper presents a design-of-experiments (DOE) study of the relationships between important hemming process parameters and hem quality for aluminium alloy AA 6111-T4PD flat surface-straight edge hemming. The quality measures include roll-in/roll-out of the hem edge as well as the maximum true strain on the exposed bent surface. The finite element (FE) model combin

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11

Kleeh, Tobias, Marion Merklein, and Karl Roll. "Laser Heat Treatment Effects on Roller Hemming in Aluminum Alloys." Key Engineering Materials 504-506 (February 2012): 711–16. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.711.

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Especially for bending/hemming operations, aluminum alloys lack sufficient formability. The aim is to use them in the same way as other structural materials such as conventional steel. In this study, a combined laser-assisted roller hemming process is set up. For this, a 4000 W Nd:YAG-laser with a wave-length of 1096 nm is used. Several parameters are defined and the effects of heat treatment on the hemming ability of AA6014 were investigated. Taking into account the kinds of components that are expected to be formed, the experiment is set up with two flexible robots that can rotate on six axe

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12

Kim, Dong Ok, Dong Woo Shin, Young Sik Yoon, Yong Mun Ryu, and Beom Suck Han. "The Study of Residual Stresses for Roller Hemmed Aluminum Alloys." Advanced Materials Research 26-28 (October 2007): 397–400. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.397.

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Many researches of automotive companies have focused on reducing weight of vehicles in order to meet the needs for high fuel efficiency. Therefore, light metals such aluminum alloys have been applied on automotive body structures. Recently, roller hemming process has been introduced for hemming of aluminum automotive closing parts such as doors, roofs, and hoods. During Roller hemming, the flange of outer panels is bent and folded along the edge of inner panel by a roller attached robot. Since the stress caused by roller hemming can affect the quality of hemmed flanges, the research has focuse

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13

Lin, Ju Guang, Guang Rui Zhou, Jian Qiang Wang, Ya Wen Huang, and Qing Hua Wang. "FEA-Simulation of Automobile Sheet Metal Hemming Process." Applied Mechanics and Materials 602-605 (August 2014): 86–89. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.86.

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Influence of different pre-hem paths on the flange geometry was studied first. Among these paths could be vertical, oblique, horizontal. The result of the simulation shows that the vertical pre-hem path leads to less creep. To avoid the hemming quality defects around the corner of the outer-sheet, influence of the structure of the pre-processing steel on the hemming force was studied. And finally the design scheme of the table-top hemming machine and the basic operating principle were presented.

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14

Zhang, Guohua, Xin Wu, and S. Jack Hu. "A Study on Fundamental Mechanisms of Warp and Recoil in Hemming." Journal of Engineering Materials and Technology 123, no. 4 (2000): 436–41. http://dx.doi.org/10.1115/1.1396348.

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In this paper, the occurrence of recoil and surface warp during the flat surface-straight edge hemming process is investigated. A general-purpose finite element code ABAQUS/Standard is used to simulate the hemming operations. Reverse bending and springback are the fundamental mechanisms that cause surface warp and recoil. Recoil and warp are not independent. One parameter, final equivalent warp, is used to represent both. Pre-hemming target ending position is proposed based on the minimization of the final equivalent warp. The influence of the geometrical and process parameters on recoil and w

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15

Neugebauer, Reimund, Welf Guntram Drossel, Markus Rössinger, Alexander Eckert, and Benjamin Hecht. "Roller Hemming Simulation: State of the Art and Application Limits." Key Engineering Materials 611-612 (May 2014): 1062–70. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.1062.

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The presented study applied the state of the art in roller hemming simulation on a car body assembly. Corner areas with changing flange lengths are always challenging in case of reaching the quality demands. Thus, the numerical results like e.g. springback, hem thickness, roll-in and hemming geometry are compared to experimental results. It is shown that the quality of prediction depends on the system stiffness of the roller hemming device, the geometrical contour of the car body assembly and the consideration of steps in the process chain like stamping and flanging. Finally, the gained cognit

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16

Hampson, Daphne. "Reply to Laurence Hemming." New Blackfriars 86, no. 1001 (2005): 24–47. http://dx.doi.org/10.1111/j.0028-4289.2005.00063.x.

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17

Sundqvist, C., and L. O. Bjorn. "Prof. Dr. Hemming Virgin." Photosynthetica 46, no. 1 (2008): 1–2. http://dx.doi.org/10.1007/s11099-008-0001-4.

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18

Ceretti, Elisabetta, Aldo Attanasio, Antonio Fiorentino, and Claudio Giardini. "Sheet Hemming with Rolling Tools: Analysis and Optimization of the Part Quality." Key Engineering Materials 344 (July 2007): 357–64. http://dx.doi.org/10.4028/www.scientific.net/kem.344.357.

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The present paper is the continuation of a research conducted on hemming operations by using rolling tools. Sheet hemming is a joining operation widely used in automotive industry when it is necessary to join two sheet parts (such as the engine hood or the door panels with their internal frame) by plastic deformation of the edge of the outer part. The whole process is characterised by a 90° sheet flanging, a pre-hemming (up to approximately 135°) and the final hemming where the outer sheet edge is bended up to 180° clamping the inner sheet. Hemming processes are normally performed using rigid

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19

Davidkov, Aleksandar, Roumen H. Petrov, Vitaliy Bliznuk, et al. "Microstructure and Hemming Properties of AA6016 Aluminum Alloy Sheets." Key Engineering Materials 465 (January 2011): 451–54. http://dx.doi.org/10.4028/www.scientific.net/kem.465.451.

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The use of Al-Mg-Si-(Cu) heat treatable 6xxx alloys is steadily increasing in the automotive industry. The possibility of weight reduction of the cars in combination with the good formability and high in-service dent resistance of these alloys, make them a favorable material for body panel applications. One of the most common, environment-friendly and easy to perform processes used to join aluminum sheets, is the hemming joining operation. This operation heavily relies on the bendability of the sheets, because they are bent to an angle of 180° over of a radius equal to their thickness. Tearing

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20

Wang, Jian Qiang, Lu Sheng Zhu, Zhong Hua Wang, Jian Yang, and Dong Hua Tang. "Implementation of Off-Line Programming for Robot Roller Hemming." Applied Mechanics and Materials 347-350 (August 2013): 268–72. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.268.

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The purpose of this paper is to introduce the important steps of OLP (off-line programming) for robot roller hemming, including acquisition of virtual environment, trajectory generation and optimization and calibration. And an algorithm for calibration was also introduced which is of high accuracy with lower cost. The feasibility of OLP for robot roller hemming was validated by the final experiment.

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21

Lin, Guosong, Jing Li, S. Jack Hu, and Wayne Cai. "A Computational Response Surface Study of Three-Dimensional Aluminum Hemming Using Solid-to-Shell Mapping." Journal of Manufacturing Science and Engineering 129, no. 2 (2006): 360–68. http://dx.doi.org/10.1115/1.2515430.

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Hemming is a manufacturing process of folding a panel onto itself or another sheet. Quality of hemming is characterized by geometry and formability. This paper presents a response surface study of three-dimensional (3D) curved-surface-curved-edge hemming of an aluminum alloy, AA6111-T4, using finite-element (FE) analysis. Solid elements and explicit FE solver are used for simulations of flanging, pre- and final hemming, and shell elements with implicit solver are deployed for springback prediction. A novel procedure called “solid-to-shell mapping” is developed to bridge the solid elements with

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22

Kaiser, Christoph, Martin Zubeil, Karl Roll, and Wolfram Volk. "New Diagnostic Techniques for an Automated Hemming Validation of Hang-On Parts." Key Engineering Materials 639 (March 2015): 509–16. http://dx.doi.org/10.4028/www.scientific.net/kem.639.509.

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Due to the increasingly shorter development times in the automotive industry the aspect of a continuous virtual product validation is getting more important. For example, in the field of the body in white construction the metal forming-specific process steps in the press shop and the hemming processes in the body shop are designed with the aid of finite element simulations. Even though the computing speeds of the latest finite element solvers are increasing constantly, there is still a huge effort in time to do the pre-and post-processing of a hemming simulation. In order to improve the respon

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23

Jimbert, P., I. Perez, I. Eguia, and Glenn S. Daehn. "Straight Hemming of Aluminum Sheet Panels Using the Electromagnetic Forming Technology: First Approach." Key Engineering Materials 344 (July 2007): 365–72. http://dx.doi.org/10.4028/www.scientific.net/kem.344.365.

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Hemming is the last or one of the latest stage operations for the stamped parts. For this reason it has a critical importance on the performance and perceived quality of assembled vehicles. It is used to attach two sheet metal parts together or to improve appearance creating a smooth edge rather than a razor edge with burrs. However, designing the hemmed union is not always easy and is deeply influenced by the mechanical properties of the material of the bended part. Main problems for the automotive industry arise when bending aluminum alloys. Aluminum sheet is more difficult to hem due to its

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24

Langstädtler, Lasse, Marius Herrmann, Christian Schenck, and Bernd Kuhfuss. "Electromagnetic Joining of Thin Sheets by Adapted Pulses." Key Engineering Materials 767 (April 2018): 439–46. http://dx.doi.org/10.4028/www.scientific.net/kem.767.439.

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In this research the electromagnetic hemming of aluminum sheets with different sheet thickness (s0 = 100 μm and s0 = 300 μm) in varied stacking sequence is investigated. Though, the research was focused on hemming of sheets with a total stacking height lower than the skin depth based on the hypothesis that a full diffusion of both sheets positively influences the process of joining by electromagnetic forming.

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25

Gu, Zhengwei, Gang Wang, and Ge Yu. "Investigation on Fracture of a 6014-T4 Aluminum Alloy Sheet in the Flanging and Hemming Process Based on Numerical and Experimental Methods." Metals 10, no. 1 (2020): 81. http://dx.doi.org/10.3390/met10010081.

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The fracture of a flat-surface straight-edge hemmed component of aluminum alloy sheets was investigated in this study. The specimen was made of 1 mm thick 6014-T4. Natural aging characteristics of 6014-T4 were studied via uniaxial tensile tests. The results show that the yield stress and ultimate tensile strength increased while the uniform elongation, strain hardening exponent, and plastic strain ratio decreased during the natural aging period, which worsened the formability. The sheet was biaxially stretched to obtain a pre-strain before the flanging and hemming operation. The influence of t

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26

Carsley, John, and Sooho Kim. "Warm Hemming of Magnesium Sheet." Journal of Materials Engineering and Performance 16, no. 3 (2007): 331–38. http://dx.doi.org/10.1007/s11665-007-9053-z.

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27

Woizeschke, Peer, Lukas Heinrich, and Philip Eichner. "Laser edge forming to increase the bending radius in hemming." MATEC Web of Conferences 190 (2018): 02002. http://dx.doi.org/10.1051/matecconf/201819002002.

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Hemming can be used, for example, to join dissimilar materials which cannot be welded by conventional laser or arc based processes. A critical value in hemming is the ratio of outer sheet bending radius and outer sheet thickness because cracks can occur in outer sheets with low ductility due to a small bending radius. In this study, a novel approach is introduced for increasing the bending radius by laser based edge forming. The laser beam melts the edge of the inner sheet prior to the hemming process. In laser edge forming, the edge thickness increases due to the surface tension of the melt.

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28

Hu, Xing, Yi Xi Zhao, Shu Hui Li, and Cheng Liu. "Numerical Simulation of Dimensional Variations for Roller Hemming." Advanced Materials Research 160-162 (November 2010): 1601–5. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.1601.

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A study to investigate the effect of hardening models on roller hemming in the case of aluminum alloy sheets is described in this approach. The most popular hardening models including isotropic hardening, kinematic hardening and combined hardening are studied using the uniaxial tension tests. Then the roll-in/out values over the hemline along width direction after pre-hemming with different hardening models are compared with the experimental results. It is verified that combined hardening model is most efficient to predict roll-in/out.

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29

Gürgen, Selim. "Numerical Simulation of Roller Hemming Operation on Convex Edge-Convex Surface Parts." Advanced Engineering Forum 15 (February 2016): 75–84. http://dx.doi.org/10.4028/www.scientific.net/aef.15.75.

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This paper presents the roller hemming operation of FEE220BH sheet metal with convex edge-convex surface geometry. The investigation is focused on process parameters of bending angle and roller geometry whose effects have not been investigated in previous studies. A set of numerical simulations is designed to observe the multi response of the process parameters. The objective of the study is to determine the influences of these parameters on deformation, undesired wrinkling formation and hemming force which are directly related to the material reliability and the visual quality in the operatio

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30

Kleeh, Tobias, Marion Merklein, and Karl Roll. "Modeling Laser Heating for Roller Hemming Applications." Key Engineering Materials 473 (March 2011): 501–8. http://dx.doi.org/10.4028/www.scientific.net/kem.473.501.

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In order to improve fuel efficiency, the use of lightweight materials in the automotive industry is continuously increasing. The AA6XXX and AA7XXX aluminum alloys in particular are the subject of significant attention. The aim is to use them in the same way as other structural materials such as conventional steel. Unfortunately their formability presents major challenges. These alloys lack sufficient formability for bending/hemming operations in particular. To overcome this, forming can take place at elevated temperatures. In this study, a combined laser-assisted roller hemming process is set

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31

Abe, Yohei, Wataru Ijichi, Ken-ichiro Mori, and Kazuma Nakagawa. "Hemming with Pre-Bent Inner Sheet for Joining Ultra-High Strength Steel Sheets of Automobile Parts." Journal of Manufacturing and Materials Processing 4, no. 3 (2020): 77. http://dx.doi.org/10.3390/jmmp4030077.

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In order to join two ultra-high strength steel sheets with low ductility for automobile parts, a joining process by hemming with a pre-bent inner sheet was developed. In this joining, the pre-bent inner sheet instead of the conventional flat inner sheet was used to relax the deformation concentration of the outer sheet. Although 780 MPa steel sheets were joined without the pre-bent inner sheet, a fracture in the outer sheet occurred in joining the 980 MPa sheets due to the low ductility of the sheets. The 980 MPa and 1180 MPa sheets were successfully joined by hemming with the pre-bent inner s

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32

Kim, D. H., S. B. Lee, B. M. Kim, and H. K. Kim. "Process design of a permalloy shielding can for shape fixability." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 219, no. 10 (2005): 723–34. http://dx.doi.org/10.1243/095440505x32698.

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This study focuses upon process design and forming analysis of a permalloy shielding can (PSC) supporting automobile multidisplay parts to indicate accurate information about the car. This study is particularly important, since the shape fixability of PSC is known to affect quite sensitively magnetic properties such as coercivity and permeability. In this study, an optimizing technique based on a neural network (NN) using an orthogonal array (OA) has been developed for deep drawing processes to obtain PSC parts that have good magnetic properties. The punch radius, die radius, and blank holding

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33

Makoto, Murata, Junhu Liu, and Kiyoshi Tanaka. "Simulation for Hemming of Aluminum Sheet Metal." Materials Science Forum 396-402 (July 2002): 1629–34. http://dx.doi.org/10.4028/www.scientific.net/msf.396-402.1629.

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34

Zhang, Guohua, S. Jack Hu, and Xin Wu. "Numerical Analysis and Optimization of Hemming Processes." Journal of Manufacturing Processes 5, no. 1 (2003): 87–96. http://dx.doi.org/10.1016/s1526-6125(03)70044-9.

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35

Hamedon, Zamzuri, Ken-ichiro Mori, and Yohei Abe. "Hemming for Joining High Strength Steel Sheets." Procedia Engineering 81 (2014): 2074–79. http://dx.doi.org/10.1016/j.proeng.2014.10.288.

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36

Dewang, Yogesh, and Vipin Sharma. "A study on sheet metal hemming process." Materials Today: Proceedings 27 (2020): 2091–95. http://dx.doi.org/10.1016/j.matpr.2019.09.074.

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37

Barnett, Adrian. "Review: Tree of Rivers by John Hemming." New Scientist 198, no. 2651 (2008): 47. http://dx.doi.org/10.1016/s0262-4079(08)60922-7.

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38

Webb, Stephen H. "Postmodernity's Transcending: Devaluing God - Laurence Paul Hemming." Reviews in Religion and Theology 13, no. 3 (2006): 356–61. http://dx.doi.org/10.1111/j.1467-9418.2006.00300.x.

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39

Esquivel, Eduardo, Giuseppe Carbone, Marco Ceccarelli, and Juan C. Jauregui. "A Dynamic Compensation for Roll Hemming Process." IEEE Access 6 (2018): 18264–75. http://dx.doi.org/10.1109/access.2018.2812145.

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40

Hu, Xing, Yixi Zhao, Sheng Huang, Shuhui Li, and Zhongqin Lin. "Numerical analysis of the roller hemming process." International Journal of Advanced Manufacturing Technology 62, no. 5-8 (2011): 543–50. http://dx.doi.org/10.1007/s00170-011-3822-4.

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41

Thuillier, S., N. Le Maoût, P. Y. Manach, and D. Debois. "Numerical simulation of the roll hemming process." Journal of Materials Processing Technology 198, no. 1-3 (2008): 226–33. http://dx.doi.org/10.1016/j.jmatprotec.2007.07.004.

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42

Hamedon, Zamzuri, Ken Ichiro Mori, and Yohei Abe. "Fatigue Strength of High Strength Steel Sheets Joined by Hemming Process." Applied Mechanics and Materials 773-774 (July 2015): 282–86. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.282.

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It is strongly desirable for the vehicle to improve passenger safety and at the same time to reduce the weight of the vehicles. A hollow section for the body structure of automobiles is studied. A high strength steel sheet is used to make the hollow sections in this studied, which are typically joined by resistance spot welding have insufficient energy absorption because the joins are not continuous. Thus, to overcome this problem, the hollow section is joined using the hemming process. The high strength steel hollow sections joined by hemming and resistance spot welding were then examined by

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43

Denninger, Ralf, Mathias Liewald, and Manfred Sindel. "Failure Prediction in Sheet Metal Forming Depending in Pre-Straining and Bending Superposition." Key Engineering Materials 504-506 (February 2012): 101–6. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.101.

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The automotive industry nowadays, uses numerical simulation systems to determine process safety of car body parts. Forming simulations are usually used to predict local necking and cracks during the deep-drawing operation or to calculate the spring-back behaviour. Furthermore, FEA is also used for optimizing the hemming process. In this contribution, further development and the use of an enhanced failure criterion for the evaluation of flanging and hemming processes are shown. This criterion describes material failure caused by incipient surface cracks on the bending edge keeping the predomina

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44

Wang, F. H., An Yuan Jiao, S. Q. Yang, and X. Q. Gao. "Experimental Study and FEM Analysis on Ceramic Composite Coating." Advanced Materials Research 79-82 (August 2009): 783–86. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.783.

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Using gravitational separation Self-propagating High-temperature Synthesis(SHS) process, ceramic composite coating was made in large cross-section rectangular pipes and hemming plate, which can be use directly and also can be cut into the ceramics clad steel plate. The experimental results showed that the surface of ceramics coating, for using section steel as core of large cross-section rectangular pipes or hemming plate combination pipes, is glossy, and its thickness is among 1.5~3.5mm. Metallurgical bonding between steel substrate and ceramics coating can not come into being and the mode of

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45

Hemming, Ann, and Sue Pettit. "The LORD Project." Legal Information Management 5, no. 1 (2005): 62–63. http://dx.doi.org/10.1017/s1472669604002397.

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At the 2004 BIALL Conference the Legal Online Resources Database (LORD) was finally launched. LORD is still growing and demonstrates a practical benefit of developing a good working relationship with the legal publishing profession. Ann Hemming gives an outline of the project to date.

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Kim, Pan Gun, and Sang Hu Park. "A Study on Improvement of Bending Quality of Hemmed Plates in Sheet Metal Forming." Journal of the Korean Society of Precision Engineering 29, no. 12 (2012): 1360–67. http://dx.doi.org/10.7736/kspe.2012.29.12.1360.

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Betz, John R. "Postmodernity's Transcending: Devaluing God ? By Laurence Paul Hemming." Modern Theology 23, no. 3 (2007): 488–92. http://dx.doi.org/10.1111/j.1468-0025.2007.00403.x.

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Bagheri, F., R. Madoliat, M. Sedighi, and A. Asgari. "Rubber-assisted pre-hemming process: A parametric study." Journal of Manufacturing Processes 38 (February 2019): 328–37. http://dx.doi.org/10.1016/j.jmapro.2019.01.031.

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49

Oakes, Kenneth. "Postmodernity's Transcending: Devaluing God - By Laurence Paul Hemming." International Journal of Systematic Theology 10, no. 3 (2008): 350–53. http://dx.doi.org/10.1111/j.1468-2400.2008.00337.x.

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Shang, Jianhui, Larry Wilkerson, and Steve Hatkevich. "Hemming of Aluminum Alloy Sheets Using Electromagnetic Forming." Journal of Materials Engineering and Performance 20, no. 8 (2011): 1370–77. http://dx.doi.org/10.1007/s11665-011-9988-y.

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