نتایج جستجو برای: radial forging

تعداد نتایج: 64786  

2001
Bernd Müssig

Within the net-shape and near-net shape technology hot flashless precision forging leads to high forging accuracy of the workpiece with regard to dimensional and surface finish tolerances. The main advantages are shortened production cycles by eliminating machining operations and the saving on raw material lost during machining. By producing ready-to-mount forgings high economical and ecologica...

Abbasi , M., Sabet, H., Sakiyan, S.,

This Paper presents the welding parameterchr('39')s effect (forging pressure, welding time) on macrostructure and mechanical properties of friction welding valve steel HNV3 to Nimonic 80A super alloy. For this purpose, two rods with 20 mm diameters are prepared and with using different parameters (Increase forging pressure and welding time) by friction welding method are welded together. Tensil...

Journal: :the archives of bone and joint surgery 0
valentin neuhaus orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa dimitrios c. christoforou orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa amir reza kachooei orthopedic research center, mashhad university of medical sciences, mashhad, iran jesse b. jupiter orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa david c. ring orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa chaitanya s. mudgal department of orthopedic surgery, massachusetts general hospital, 55 fruit street, boston, ma, 02114 usa.

background:  the purpose of this study was to report the preoperative complaints and postoperative outcome of patients after removal of the radial head prosthesis.   methods:  this is a retrospective review of 14 adult patients (6 females and 8 males) from 2007 to 2011, who underwent radial head prosthesis removal by three surgeons. the average time between implantation and removal was 23 month...

2017
Yi-Ling Chang Fei-Yi Hung Truan-Sheng Lui

In this study, a cast rod is used as the material for the forging process (without extrusion). The cast forging process is used to ameliorate the coarse grains that form in the follow-up heating process of extrusion-forged materials. Infrared (IR) heating is also used for comparison with conventional heating processes. Experimental results show that the direct forging process (without extrusion...

2016
D. B. Gohil

Abstract—Closed die forging is a very complex process, and measurement of actual forces for real material is difficult and time consuming. Hence, the modelling technique has taken the advantage of carrying out the experimentation with the proper model material which needs lesser forces and relatively low temperature. The results of experiments on the model material then may be correlated with t...

Journal: :Journal of Hospital Medicine 2017

2015

Accuracy is the key issue in the precision forging. Geometric and dimension errors are the two significant defects found in most of near net or net shape manufacturing process. It becomes more critical for complex part such as an AUV propeller blade. In this study, geometric error was quantified by comparing the blade profile obtained from nominal geometry of the blade and the profile construct...

2007
James R. Dale

Since 1986, more than 500 million powder forged (PF) connecting rods have been manufactured and installed in automobiles worldwide. The application of forging a preformed near-net shape consolidated from metal powder has been widely accepted since the early eighties and today is the preferred manufacturing technique for 60% of the connecting rods manufactured in North America. The remaining por...

Journal: :Index on Censorship 2001

Journal: :Canadian Urological Association Journal 2013

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