Results 41 to 50 of about 613 (113)

Coating-substrate-simulations applied to HFQ® forming tools

open access: yesMATEC Web of Conferences, 2015
In this paper a comparative analysis of coating-substrate simulations applied to HFQTM forming tools is presented. When using the solution heat treatment cold die forming and quenching process, known as HFQTM, for forming of hardened aluminium alloy of ...
Leopold Jürgen   +2 more
doaj   +1 more source

Numerical simulation of cold forging process to investigate folding defect in enclosed dies

open access: yesMechanics and Advanced Technologies, 2017
In the precision forging industries, improving product quality and reducing product cost are important cases. Enclosed-die forging is one of the precision forging processes.
Payman Abhari
doaj   +1 more source

Surface accuracy achieved by upsetting of preforms generated by laser rod end melting

open access: yesMATEC Web of Conferences, 2015
Cold forming generally allows the reproduction of parts with a high production rate and low waste of material. For this reason, many small parts for example of the body of a smartphone undergo at least one forming operation during their fabrication, e.g.
Brüning Heiko, Vollertsen Frank
doaj   +1 more source

Effect of Annealing on The Forming Ability for Brass Sheet

open access: yesJournal of Engineering and Sustainable Development, 2013
This research deals with the effect of annealing on the cold forming of brass sheets. In this research two methods were chosen one of them is an experimental work and the other is a numerical work. The material used is a brass sheet. Sets of specimens
Ahmed . S. Abdulaziz, Sael S. Al jameel
doaj  

Forming Reason and Process Improvement of Seab Defects Rolled Boron-bearing Cold Heading Steel 10B21

open access: yesTeshugang, 2022
Through experiments and thermodynamic analysis, it is obtained that the main cause of the scab forming of rolled 10B21 steel is the average nitrogen content in steel being 127 x 10-6lead to the precipitation of fine BN and AIN inclusions at the austenite
肖广阔   +4 more
doaj  

Ductile damage prediction in different cold forming processes

open access: yes, 2015
The purpose of the present paper is to show how and to what extent the introduction of refined, shear sensitive models improves on previous ones, based on triaxiality only, for the phenomenological description of ductile damage in bulk cold metal forming processes. Wire-drawing and wire rolling are taken as examples.
Cao, Trong Son   +2 more
openaire   +1 more source

A Review on Production and Development of Cold Heading Steel

open access: yesTeshugang, 2005
The cold heading steel coil generally is low and medium carbon quality steel and alloy structure steel to manufacture various standard mechanical element and fastener by cold heading forming.
先越蓉
doaj  

Influence of surface integrity on the plastic flow in analogous testing of 42CrMo4

open access: yesMATEC Web of Conferences, 2018
Surface modification of workpieces for cold forming processes is common in industrial practice. Specific surface topographies manufactured by means of shot peening form lubricant pockets, which provide a continuous lubricating film throughout the process.
Hild Rafael   +7 more
doaj   +1 more source

THERMAL COUPLED NUMERICAL SIMULATION OF COLD EXTRUSION AND THE OPTIMUM DESIGN OF DIE FOR THE INTERFERENCE FIT

open access: yesJixie qiangdu, 2017
Cold extrusion technology is a kind of high precision,efficient,high quality and low cost advanced production technology,in the modern production plays an important role.
WANG LiBo, LIU Yu, WANG Yu, QIN Yi
doaj  

Numerical Analysis of Circular Pre-notched U-Channel Section Distortions in Cold Roll-Forming Process [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2017
Cold roll forming is a process in which a metal sheet gets a desired section form by passing through a series of rotating rollers. Predicting the amount of the distortion in pre-notched cold formed sections still remains challenging in cold roll forming ...
S. Sattar, S. Mazdak, E. Sharifi
doaj  

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