ويركزمعهد بحوثالعامة لليمينغ الصناعة الثقيلةفي مجال البحوث وتطوير التكنولوجيا المتقدمة والمنتجات الموجهة لصالح العملاء، فضلا عن بناءالقدرة التنافسية الجوهريةليجعل يمينغالصناعة الثقيلةرائدةفي هذه الصناعة.من خلال توفيرنتائج البحوثالأساسية، ويدعم المعهديمينغالصناعة الثقيلةالتكنولوجيا والمنتجات لتكون أعلىمنهافي العالمالقائمة.
معهد بحوثالعامة لليمينغ الصناعة الثقيلةهيقسم البحث والتطويرالأوليةللبحوثالتقنيةوالإدارة التقنية. وهي مسؤولة عنتطوير التكنولوجياالمطبقة علىيمينغجميع المنتجات، وإجراء البحوث الفنيةمقدمةعلى المنتجات الجديدةووضعالمعايير؛البحثالاهتزاز، والأثر، والضوضاء، والتكنولوجيا الهيدروليكية، والمطابقة الطاقةوتوفير الطاقة، والمواد الجديدة، وأنظمة التحكم، وخلق تكنولوجياتمبتكرة ومنتجاتحمليوبناءمنصة علىشبكة خاصةوعامةللتجاربوالاختباراتوذلك لتبادل التجربةالعامة ونتائج الاختبار.
Abstract The invention discloses an integrated cross wedge rolling mill driven by a hydraulic motor The integrated cross wedge rolling mill comprises a working rack and Cross wedge rolling (CWR) is an advanced metal forming technique for producing preforms (for press forging) or finishedformed stepped axes and shafts This New forming possibilities in cross wedge rolling processes
More efficient methods of manufacturing railcar axles are currently being sought A promising line of research in this respect is connected with the use of cross In this paper, a novel method of ball forming by cross wedge rolling is proposed The forming of steel balls with diameter of 26 mm by CWR is taken as an A novel method for ball forming by cross wedge rolling
Cross wedge rolling (CWR) process is an economical process for shafts forming by using two or three wedgeshaped tools to oppositely press into the workpiece Zbigniew Pater,Janusz Tomczak,Tomasz Bulzak Add to Mendeley https://doi/101016/jpromfg201707137 Get rights and content Under a Creative A Cross Wedge Rolling Process for Forming 70 mm ScienceDirect
Crosswedge rolling (CWR) is a modern technology of metal forming applied mainly for manufacturing of stepped axles and shafts The second area of H630 crosswedge rolling mill and rolled piece Full size image 62 Core quality analysis The workpieces with rolling temperature of 700 °C, section shrinkage of 30%, forming angle of 30°, and spreading angle of 3° were selected for longitudinal and symmetrical center transverse cuttingCore damage mechanism and effects of shaft parts by warm crosswedge
With the rapid development of highend equipment in aviation, highspeed rail, and other fields, the requirements for the necessary shaft foundation parts on the equipment are more stringent This has resulted in rapid development of the new generation of threeroll skew rolling (TRSR) flexible forming shaft part technology It is an important Li Q, Lovell M (2008) Cross wedge rolling failure mechanisms and industrial application Int J Adv Manuf Technol 37:265–278 Article Google Scholar Urankar S, Lovell M, Morrow C, Li Q, Kawada K (2006) Establishment of failure conditions for the crosswedge rolling of hollow shafts J Mater Process Technol 177:545–549A new process chain combining crosswedge rolling and
The mill has already been employed to laboratory rolling tests of flexible skew rolling and hot cross wedge rolling The rollers of the WCWR of hollow shafts with corrugated outer surface are shown in Fig 7 b, whose parameters are the same as those of the geometric model in the FE model31 Dec 2013 Vol 3, pp 211279 TL;DR: Crosswedge rolling (CWR) as discussed by the authors is a modern way of using metal to form axially symmetric products, which can be applied to a wide range of applications, such as automotive and aerospace View 20 related papers Abstract: The present study discusses the process of crosswedge rollingCrossWedge Rolling (2014) Zbigniew Pater 56 Citations
The utility model provides a roller spacing regulating mechanism for a cross wedge rolling mill The roller spacing regulating mechanism comprises wormgear cases fixedly arranged on the left and right of a frame of the rolling mill; worm gears and worms, which are meshed with each other, are arranged in the wormgear cases; adjusting screws are in The formability and microstructure of TC4 titanium alloy hollow shafts formed by crosswedge rolling (CWR) are being investigated to ensure that products manufactured for utilisation in the aviation sector are lightweight The flow behaviour of the TC4 alloy was studied via isothermal hot compression tests The constitutive equations in Formability and microstructure of TC4 titanium alloy hollow
This computer simulation software has been successfully used by many researchers to analyse processes such as crosswedge rolling [18,19,20], skew rolling [2, 10, 21,22,23,24], and ring rolling [25,26,27], and the numerical results obtained in these studies were in good agreement with the experimental findingsThe proposed twostage technique is based on cross wedge rolling First, a rail head is formed into a cylindrical bar with a diameter of 52 mm Next, the bar is formed into four balls, each with a diameter of 70 mm Given the twostage design of the process, an innovative flatwedge reversing mill had to be designedA Cross Wedge Rolling Process for Forming 70 mm
Crosswedge rolling (CWR) is an advanced forming process that uses a pair of molds with wedges to roll cylindrical billets to achieve rapid and nearnet shape of shaft parts Patents for rollingRolling schematic view Rolling visualization In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property The concept is similar to the rolling of doughRolling is classified according to the Rolling (metalworking)
The article presents the issue of material fracture during the process of crosswedge rolling (CWR) The object of the research was the process of forming a harrow tooth preform In the conducted analysis Production of hollow shafts satisfying mechanical performance requirements can well meet the needs of lightweight The purpose of this work is to investigate the effect of cross wedge rolling (CWR) process parameters on microstructure and mechanical properties of TC4 titanium alloy hollow shafts, so as to ensure the Microstructure and mechanical properties of TC4 titanium
This paper presents two rolling technologies: crosswedge rolling (CWR) and helicalwedge rolling (HWR) The two rolling processes were compared using the example of rolling a ball stud forging The technologies were modeled in the finite element model (FEM) environment Calculations were performed to obtain distributions of strain Cold Cross Wedge Rolling is used mainly for the manufacture of axisymmetric parts, allowing the molding pressure at normal temperatures and compressions Cold rolling advantages: improvement of strength properties as a result of strain hardening, high dimensional accuracy, almost the final shape and high quality of the surface of the partCross Wedge Rolling (CWR) ERS Engine
Crosswedge rolling (CWR) is the metal forming of axi It is realized in a ULS70 rolling mill, equipped with rolls of a diameter of 700 mm In this process,This article presents the results of model tests aiming to verify the possibility of applying commercial plasticine as a model material for modelling the limits to the crosswedge rolling process This study presents a comparison of the results of laboratory testing and physical modelling of crosswedge rolling (CWR) processes Physical Modeling of Cross Wedge Rolling Limitations MDPI
Cross wedge rolling process provides a new way with short production chain and precise control for high the experiments served to evaluate the technological potential of the rolling mill usedThe aim of this article is to review the application of the finite element method (FEM) to crosswedge rolling (CWR) modeling CWR is a manufacturing process which is used to produce stepped axles and shafts as well as forged parts for further processing on forging presses Although the concept of CWR was developed 140 years The Application of Finite Element Method for Analysis of CrossWedge
Yang CP, Ma JW, Hu ZH (2013) Analysis and design of cross wedge rolling hollow axle sleeve with mandrel J Mater Process Technol 239:346–358 Article Google Scholar Stefanik A, Morel A, Mróz S, Szota P (2015) Theoretical and experimental analysis of aluminium bars rolling process in threehigh skew rolling mill
