نتایج جستجو برای: isothermal forging

تعداد نتایج: 17762  

Journal: :Journal of Nanomaterials 2022

Integrating machine learning into one of the manufacturing processes, i.e., forging, is mainly concerned with making system more intelligent by incorporating them to exhibit global understanding. Sometimes engineer/operator can find defects during or after forging operation. So, will need some input identify different types categorized defects. And also, according that, we develop fault diagnos...

Journal: :Metals 2023

This paper aims to improve the mechanical properties and fatigue life of AISI/SAE 4140 alloy steel connecting rods (CRs). Conventional CRs are typically manufactured through open die forging/hammering, blocking, hot forging processes. In present work, a modification process route has been proposed such that forging/hammering was completely replaced with multistep asymmetrical reducer rolling te...

2009
Stephan Weidel

In cold forging processes the tribological conditions are very important for process feasibility and tool lifetime. Since boundary and mixed lubrication conditions are predominant in cold forging processes, the appearing real contact area which is influenced significantly by the topography of tool and workpiece has a major impact on the friction conditions. Against the background of current tre...

2005
Masatoshi Sawamura Yasuhiro Yogo Sayuri Kondo Toshiaki Tanaka Koukichi Nakanishi Toshiyuki Suzuki Atsuo Watanabe

We have been developing a process design CAE system to predict die wear life in the process design stage for the hot forging of steel. Our goal is to reduce production costs by shortening the development period, while maximizing the life of the die. In our system, we use an expression that defines the relationship between die wear, die strength, and friction factors, such as die pressure, slidi...

2015
Shao-Yi Hsia Po-Yueh Shih

Cold forging has played a critical role in fasteners and has been widely used in automotive production, manufacturing, aviation and 3C (Computer, Communication, and Consumer electronics). Despite its extensive use in fastener forming and die design, operator experience and trial and error make it subjective and unreliable owing to the difficulty of controlling the development schedule. This stu...

2006
Chul-Hyun Park Dong-Yol Yang

In many 3-D forging simulations, the master-grid method or uniform-grid method is adopted as an effect tool for hexahedral element mesh generation, because the method is robust and reliable to construct the intermediate mesh during forging simulation. However, almost equalsized element mesh is employed regardless of the local characteristics of the deforming region. In order to overcome this dr...

2016
A. Ahmad M. A. Lajis N. K. Yusuf

Aluminium is totally recyclable with no downgrading of its qualities, but in the process of typical conventional aluminium recycling, there are quite a number of negative impacts. The recycling of aluminium and its alloys by direct recycling method is relatively simple, consumes small amount of energy, produce small amount of waste and does not have a harmful effect on the environment. This app...

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