Results 101 to 110 of about 61,552 (299)

Precision forging

, 2023
The bachelor’s thesis describes the characteristics of precision forging and forgings followed by the prerequisites necessary for the implementation of technology. In the following sections the theoretical and technological basis of individual methods is
Alrawi, Hassan
core   +1 more source

Forging of rotary forgings

, 2022
The thesis is focused on manufacturing proposal of the conveyor chain sprocket using die forging from steel C45 (12 050). Based on the literature review of eligible technologies, volume termoforming technolology has been selected here, more accurately ...
Konvalina, Michal
core  

An innovative thermal simulation study of microstructure improvement by delay forging during solidification

Journal of Materials Research and Technology
The solid fraction at the beginning of the forging process is an important factor affecting the performance of the casting-forging integrated forming, which is an innovative and efficient process.
Jiongshen Chen, Li Rong, Chenxi Ma, Wu Wei, Shengping Wen, Kunyuan Gao, Hui Huang, Zuoren Nie   +7 more
doaj   +1 more source

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

Angewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer, Vincent George, Aryaman Pattanik, Gaia Carpentiero, Tereza Morcinková, Julia Rehbein, Burkhard König   +6 more
wiley   +1 more source

Collaborative research work in cold and warm forging at University of Padova, Teksid and Carraro within the EUREKA-FAMOS “EFFORT” project

, 1994
Theongoing collaborative research work at the University of Padua and the two companies Teksid and Carraro within the Eureka-Famos "E.F.ForT. "project ispresented.
BERTI, GUIDO, L. D'ANGELO, L. DE CHIFFRE, P. F. BARIANI, A. MARCHETTI, R. GUGGIA, MENEGHELLO, ROBERTO   +6 more
core  

Optimization of Eleven Cross-Roll Straightening Process for 20CrMnTi Bars Based on Combined Hardening Model

Metals
Straightness is one of the important indices to measure the quality of bars; multi-roll straightening is an essential process in bar production.
Shangwu Jia, Longyi Bao, Shijie Wang, Qingdang Meng, Jun Zhao, Ruixue Zhai   +5 more
doaj   +1 more source

Development and Evaluation of Environmentally Friendly Cold-Forging Lubricants Based on an Emulsion Polymerization System

, 2006
Cold forging applications are used in the manufacturing of machine parts, this is due to the conservation of material and high geometric tolerances achieved.
Cochran, Joseph L
core  

Virtual set up of multi-stage presses for forging technology integrated with process design

, 1999
In the current practice the set-up of multi-stage transfer presses results to be an intensive-labour and time-consuming activity which considerably contributes to the increase of non operational time of the press. Considering the high production rates of
BERTI, GUIDO, J. J. YANG, P. F. BARIANI
core  

Precision die-forging

, 1969
This paper presents the results of precision die-forging based on the work carried out in Metaz Works, Praha. Precision die-forging has the advantages of good surface finish, dimensional accuracy and ability to forge all types of bevel gear wheels more ...
Benda, J
core   +1 more source

Effect of Hot Rolling on the Microstructure and Properties of Dispersion-Strengthened W-La Alloy

Metals
The effects of different deformation processing routes (rolling and rotary forging) and temperature conditions on the microstructure and mechanical properties of W-1%La2O3 alloy wire were investigated. The results indicate that with increasing cumulative
Junling Fan, Tianlin Zhu, Jun Cao, Yongzhen Sun, Junchao Zhang   +4 more
doaj   +1 more source