FATIGUE BEHAVIOR AND MICROSTRUCTURE EXAMINATIONOFAISI D2 TRIM DIESbyXINCHEN WANGDecember 2013Advisor: Dr. Xin WuMajor: Mechanical EngineeringDegree: Master of ScienceAISI D2 steels are widely used as tools for forming, drawing and trimming diesdue to its high wear resistance, high compressive strength and low distortion, and itsperformance as a tr...

The study based on the slab method and FEM simulation is to explore wire rod drawing using rotating die. Constant shear friction assumed at interface between die different conditions such as angular velocity (ω), half angle (α°), frictional factor (m) etc. influence of forming characteristics. Besides, stress occurred has been analyzed realize whether failed or not. axial stress, radial force, ...

In order to solve the problem that due to the unreasonable parameter Settings when use CAE analysis to produce the cars covering parts mould, such as sheet wrinkling, cracking, and more than an acceptable range of rebound. This article used CAE analysis software to find relatively reasonable parameters to achieve a reasonable analysis in the process of sheet metal forming defects and to put for...

This paper focuses on the problem of choosing the manufacturing route and characteristics in sheet metal processes, a very important element in computer aided process planning (CAPP) systems. At present, decisions concerning the operations, die, machine and process parameters used in sheet metal are based on experience. One of the objectives of this work has been to develop an activity model to...

die direktreduktion von eisenerzen zu eisenschwamm mittels erdgas wird iiberall dort verwendet wo einmal die notwendtigen rohstoffe und besonders der metallurgische koks zu wirtschaftlischen bedingungen fehlen. andereseirs wiederum miissen erdgasrerven in geniigenden mengen und qualitat zu verfugung stehen, urn die direktredution mit gutem wirkungsgrad durchfuhren zu konnen. in dieser arbeit wi...

Nach dem kurzen Bericht ueber die Geschichte van Tetanus; haben wir in diesern Artikel ver­sucht,ueber die Epedirniologie, Pathophisiolo­gie,Aethiologie und die Frueh-und Spaet-Symp­ptome von dieser gcfahrlichen Krankheit,die einen Durchschnitt von 35% Mortalitaet hat,zu berichten.  In disern Artikel legen wir vi.ei wert,besoaders ueber die The·.rapie 1md der Prophyla.xe. Unc:I wii' hal)en bed...

der folgende text, der unter der betreuung von herrn dr. touraj rahnema entstanden ist, erw?hnt zuerst kurz die bestimmenden züge der literarischen schule, die im europ?ischen kulturraum allgemein als romantik verstanden wird, will aber darüber hinaus die romantik als eine art lebenshaltung und kunstverst?ndnis begreifen, die unabh?ngig von einer bestimmten kunstperiode genauso auch in ?stliche...

NiTi alloy wires are widely used in many applications for examples, orthodontic arch wires, mini screw implant, sensors, etc. Usually, wire drawing process is chosen to produce arch wires because of its high productivity as well as superior surface quality of the drawn wire surface. In the case of NITI arch wire, the cold work occurred during wire drawing operation also plays important role to ...

Introduction Prior to the adoption of continuous drawing practices, little attention was given to understanding wiredrawing theory. This can be largely attributed to the fact that, until the introduction of steam power, the single, largest problem facing wiredrawers was obtaining the necessary motive force required for the drawing process. As developments and improvements in mechanization devel...