one kind of bud-shaped forging of the forging process analysis diagram shown in Figure l. Beat piece 251 Figure Figure 1 of this material is strong 2Cr13 stainless steel forgings, volume 40, forging a narrow temperature range, we use 250kg air free forging,hollister scs. Forging Weight 1,Hollister wien.65kg, with the fire consumed the first rough cut weight 2.1kg, cutting size ~ 60 × 95. This forging in terms of material point of view, or from the complexity of the factors are very difficult to consider forming forgings. This forging of the biggest technical difficulty is 40 × 60 face difficult card out of the buds. Process requirements blacksmith made 40 bore, thickness of the drain plate 60 a. We use two methods of similar processes, the effect is quite different. 1,hollister ireland. Process compared to the bud-shaped pieces of the original upsetting forging process and improved forging process of comparing column in Table l. 2. Effects of riveting more rust Hang Tun Table 1 of the original r forging forging forging process and the improved contrast of the original forging process removal Mount improved industrial forging deformation processes of boron removal process times the fire resistance class Mu pressure deformation processes play wide -1-1 compression sac , F + __1n laugh hanging Taiwan Taiwan trapped. lIIl (] Ye Ni Hui Hui head hit flat playing surface iI 2 emblem forged from C === b) {play flat L emblem forging work] 3 [t hit flat complex (tI4 classes) 2] made good at two levels linked to two ∈ accounting accounting level 3 pull ∈ insects are more positive use of the same blank, the application of the same equipment and tooling, the effect varies greatly. Application of the original forging process, the production of four, qualified 3. Main problems are as follows: (1) 40 end of the first concave varying degrees of heart, of which two form a sandwich; (2) in leaf shape and shank junction folding defects occur; (3) forging a very irregular, and the production and inefficient. Application of improved technology, produced a total of 38, except two blade sizes for repair, the rest are all qualified. Complete forging technology 17 1995 2 17 2 / forging time on the oxidation (burning) of the Coal Mine Machinery Factory of Beijing pass safety standards, and Lin flesh learn fr,abercrombie,. Abstract This paper discusses the heated metal, the impact of oxidation (burning) of several key factors, such as: heating temperature sour, heating time, the furnace gas composition and the chemical composition of metals and metal billets relative surface area,hollister, and discussed the forging of burning computational problems. That the correct calculation of the heating norms primarily by burning billets relative surface area (surface area and mass ratio) as the basis, and gives several burning heating mode and two tables calculate the thickness of the blank to The Q test, clean. r. '. , Keywords pad dignified fall i wire count blanks 1T. _ _-● r an eleven. , A, I, / eight II pieces, in a certain production conditions, the material re-calculation error, with the exception foreword by forging complex shapes, volume calculation error, is that burning the calculation error. If it is free forging, forging production plant is generally not in the burning of metal is a heavy seasoning weight calculation test, therefore, important for the calculation of expected accuracy problems. For hot forging + production,abercrombie, you should do the process of even higher if several tons, dozens of tons of steel and even more expected of course also includes a re-trial for forging material has been cutting to size, once the material re- The calculation is wrong, to overcome the end of the first concave heart defects, reducing the fire times, forging quality has significantly improved the appearance of 3. Analysis of improved process technology the biggest difference is in the original forging process based on the first play to increase the flat process. The following is a combination of their own forging process effectiveness analysis features,abercrombie amsterdam. (1) the application of the original process method, compression pull station, the hammer and the forging of small contact area, card table is small, only 60 × 30, material center of distortion, so the formation of concave heart defects in the application of improved methods of forging process, along the radial direction is the first blank is equivalent to playing flat radial upsetting, billets formed around the protruding material flow along the radial direction of the large,Abercrombie nederland, but the length remained the same; and then pull the compression station, the both ends of the convex the end of the first part of the heart to form the Ministry of depression compensation,hollister, the concave heart defects greatly reduced or even disappear 18 (2) using the original forging process, forging the first round after the two sets of radial difference between large, flat leaves play, due to large deformation, physical connection is easy to produce two folding defects, and hit into a 40ram thick flat oval with the same shank diameter, after upsetting then leaves, leaf thickness and size difference between the shank greatly reduced,hollister, resulting in two physical connections folding greatly reduce the chance of missing dance (3) oblate compression to overcome the phenomenon of clamp with meat, forging almost no clips in the rotation, improved compression efficiency. (4) Department of upsetting leakage Handicap 5 to 8 should be ground into a corner,hollister, which eliminates the physical connection of the two folding defects. However, rounded corners can not be too large, over the General Assembly to increase the consumption of metallic materials. Rounded by the regulation, will play a useful role. Short, flat drawing by playing the long process, improve the stretching effect, it is suitable for a small card table, cross-sectional difference between the freshman class of forgings stretching Topics related articles:        相关的主题文章： Zhou Lian. Materials Science and Engineering Manual EM]. Beijing 9 and other process parameters the same Placed side by side for a few or a dozen parts

,Abercrombie nederland S-shaped pieces forming process parameter optimization and experimental study analysis shows that, based on PFEA, ANN and GA for the S-shaped pieces forming process parameter optimization is feasible, and has some practical value. References: [1] Xie Shikun,abercrombie. Mesh and its parameterization in sheet metal forming finite element analysis should be [5] [6] [7] [8] with [D]. Nanchang: Nanchang University, 2005. Tanjian Hao, Zhang Jing. Based on orthogonal planning forging process design criteria for optimal experimental study [J]. Forging Technology, 2006,31 (2) :97-101. Xie Shikun, flowers,abercrombie amsterdam, Guo-Tai Yang. CAD / CAE integration in the finite element model of conversion of [J]. China Mechanical Engineering, 2005,16 (5) :428-431. Xie Shikun, flowers, Guo-Tai Yang, et al. The parameters of the complex curved surface meshing method [J],hollister. Plasticity Engineering, 2005,12 (1) :29-33. Xiao Guanyun, Xie Shikun, flowers, and so on. Based on PFEA, ANN and GA U-shaped pieces of sheet metal forming the shape optimization [J],hollister ireland. Mold Industry, 2006,32 (12) :1-2. NaderAsnafi. Onstretchandshrinkflangingofsheetalumi-numbyfluidforming [J],hollister. MaterialsProcessingTechnology ,1999,96:198-214. Xie Shikun, flowers, Guo-Tai Yang, et al. Dynamic explicit algorithm based on the automotive panel forming process finite element [A]. North Third Conference Proceedings Plasticity [C]. Baotou ,2004.71-75. Hecht-NielsenR. Theoryoftheback-Propagationneuralnet-work [A]. ProceedingsoftheInternationalJointConferenceonNeuralNetworks [C]. WashingtonDC ,1989.593-6O5. United Development Company Beijing vary depending Hui Hui Machinery Co., Ltd,hollister scs. Beijing Electrical Co., Ltd. United Development Corporation is a wholly-owned enterprises in China to set up Beijing high-tech enterprise, specializing in electric-hydraulic hammer (liquid air hammer) technology for a space free steam hammer and hammer forging to transform, to undertake a variety of major tonnage of steam - air free forging and die forging hammer transformation and electro-hydraulic hammer, quickly forging, hydraulic press machine design and manufacture of complete sets of projects to meet national energy-saving and environmentally friendly development requirements. The end of 2000 in Changchun FAW Forging Co., Ltd. and Baoshan Iron & Steel Co., Ltd. in 2005 in a special branch of the electro-hydraulic hammer steel transformation projects, our company with advanced technology,Hollister wien, reliable quality, good service and reasonable prices fell swoop; 2002, and completed the transformation of Changchun FAW hammer the second phase. This indicates that our products in the same industry leading level. Has for the Shougang Group, FAW, Hafei, too, NAC, Baosteel and other steel metallurgy,hollister scs, aviation, automobile manufacturing, shipbuilding, military, oil machinery, mining machinery, heavy machinery and specialized forging enterprise transformation of the three hundred Taiwan hammer. In recent years, more sets of machine hammer to undertake projects, to the end of 2006, users of the machine has delivered more than three units. The hammer is fully capable of a continuous three-shift production to meet the needs of users. To this end, China Machinery and Electronic Daily Company's services: quality first, customer first, service time,hollister, provide users with satisfactory products and services. Address: North Street, Haidian District, Beijing Xizhimen age 45, Block D, 1601,1603 light gardens Postcode: 100044 Tel :010 -62223338 / 9,62218886 Fax :010-62260635, hUp: / / www. beijing-yihui. comE-mail: tec @ beijing-yihui. com, bjyihui @ sohu. net Wuxi Office: Address: Wuxi City,abercrombie, Jiangsu Province Economic Development Zone, Huishan 102 Jin Hui Road Postcode: 214174 Tel :0510 --83,596,685 / 6 Fax :0510-83596689 Topics related articles:        相关的主题文章： music and translated Peter Remove the first child die forging and have made certain benefits