Results 11 to 20 of about 1,149 (233)

Effect of Warm-Forging and Isothermal Normalizing on Austenite Grain Size of Carburized and Quenched Gear Steel 20CrMnTiH3

open access: yesTeshugang, 2016
The effect of process of warm-forging at 880 ~ 930 °C on growth of austenite grain of gear steel 20CrMnTiH3 is analyzed by examination of physicochemistry and original material austenite grain size to get that the austenite of steel is easy abnormally ...
白瑞娟   +5 more
doaj   +1 more source

Wear in Hot and Warm Forging: Design and Validation of an New Laboratory Test [PDF]

open access: yesCIRP Annals, 1996
Abstract A simulative wear test for hot and warm forging tools is presented which has been developed by the Authors with the twofold purpose of (i) verifying the applicability of wear micro-mechanical models in simulation of hot and warm bulk metal forming operations using FEM codes and (ii) evaluating wear parameters by an inverse numerical ...
BARIANI, PAOLO FRANCESCO   +3 more
openaire   +3 more sources

Design of a wear test for hot and warm forging [PDF]

open access: yes, 1995
This paper presents a laboratory simulative test for hot and warm forging tools designed and set-up by the Authors with the twofold purpose of (i) verifying the applicability of wear micro-mechanical models in simulation of hot and warm bulk metal forming operations using FEM codes and (ii) evaluating wear parameters by an inverse numerical technique ...
BARIANI P. F.   +3 more
openaire   +2 more sources

Simulation and Experiment of Manufacturing Process for Structural Aluminum Parts with Hard to Plastic Forming

open access: yesMetals, 2019
A process comprising a hot extrusion process and a warm forging process was designed to form an umbrella-shaped aluminum structural component with a high degree of difficulty for the plastic forming method. A circular cylindrical part was extruded with a
Chul Kyu Jin
doaj   +1 more source

Effect of Texture on the Ductile–Brittle Transition Range and Fracture Mechanisms of the Ultrafine-Grained Two-Phase Ti-6Al-4V Titanium Alloy

open access: yesMetals, 2023
In this work, the technique of equal-channel angular pressing (ECAP) that enables producing bulk billets was used to form a UFG structure in Ti-6Al-4V alloy. A subsequent warm upsetting simulates die forging and the production of a part.
Iuliia M. Modina   +4 more
doaj   +1 more source

Analysis and Process Improvement of Mixed Crystal in Warm Forged 20CrH Inner Star Wheel

open access: yesTeshugang, 2023
The 20CrH special steel bar produced by a special steel factory,after warm forging to make inner star wheel by the downstream user,the mixed crystal phenomenon was found after carburizing heat treatment at 9655 ℃×6 h.Using light microscope observation ...
徐乐钱   +4 more
doaj  

Improvement Of Tools Durability By Application Of Hybrid Layer Of Nitrided/PECVD Coating.

open access: yesArchives of Metallurgy and Materials, 2015
In the process of die hot forging the tools are subjected to three main factors leading to their destruction: the intensive thermal shocks, cyclically variable mechanical loads and intensive friction.
Gronostajski Z.   +4 more
doaj   +1 more source

Thermal exchange effects on steel thixoforming processes [PDF]

open access: yes, 2010
Steel thixoforging is an innovative semi-solid forming process. It allows the manufacturing of complex parts and minimises the forming load. This work aims to identify and characterise the main feature zones of a thixoforging part.
LANGLOIS, Laurent   +2 more
core   +1 more source

Analysis of the Bimetallic Joint of a Hot-Forged Crosshead Composed of ASTM B221 6060 Aluminum and AWS A5.36 E110C-G M Low Alloy Steel Obtained by Localized Fusion Additive Manufacturing [PDF]

open access: yesMaterials Research
In this study, the development of a bimetallic crosshead produced by additive manufacturing (AM) is discussed, evaluating the joint region between the two metals.
Joélson Vieira da Silva   +5 more
doaj   +1 more source

Effect of Processing Conditions on Forgeability and Properties of Hot and Warm-Forged Steel 300M

open access: yesArchives of Metallurgy and Materials, 2017
Results of investigation of the effect of processing conditions of medium-carbon alloy steel AISI 300M on forgeability and microstructure-properties are presented here, including as-forged and heat treated condition of the material. The presented results
Skubisz P., Łukaszek-Sołek A.
doaj   +1 more source

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