scholarly journals A forging press design from physical prototyping practices

2020 ◽  
Author(s):  
Gabriel Dias Venâncio ◽  
Francisco da Silveira Neto ◽  
Alber Francisco dos Santos Neto
Keyword(s):  
Forging Press

The New Methodology of Working Load Classification in Engineering Operations

2013 ◽  
Vol 664 ◽  
pp. 1186-1190
Author(s):  
Maria Kapustova
Keyword(s):  
Mathematical Model ◽  
Working Conditions ◽  
Human Body ◽  
Complex Loading ◽  
Summary Effect ◽  
Moment Load ◽  
Forging Press ◽  
Negative Factors

Working conditions in engineering operations are often characterized by a complex of negative factors, which at every moment load the human body during the active work with various intensity. Determination of the intensity of the workload is important for creation of workplace comfort, which is closely connected to workers’ contentment. The contribution presents a description and application of a mathematical model for determination of the workers´ complex loading at forging press workplace. It's a new and human way of evaluating work comfort, which can take into account the summary effect of all the negative factors at the workplace.

scholarly journals Novel robot arm design and implementation for hot forging press automation

2018 ◽  
Vol 57 (14) ◽  
pp. 4579-4593 ◽  
Author(s):  
Chu A. My ◽  
Chi Hieu Le ◽  
Michael Packianather ◽  
Erik L.J. Bohez
Keyword(s):  
Hot Forging ◽  
Robot Arm ◽  
Design And Implementation ◽  
Forging Press

scholarly journals Optimizing Cold Compression Deformation to Remove Residual Stresses in Die Forged Disc of Al-Mg-Si Alloy

2018 ◽  
Vol 778 ◽  
pp. 53-60
Author(s):  
Naveed Akhtar ◽  
Muhammad Afzal ◽  
Muhammad Awais ◽  
Muhammad Akbar
Keyword(s):  
Residual Stresses ◽  
Cold Deformation ◽  
Hot Water ◽  
Work Piece ◽  
Optimum Level ◽  
Compression Method ◽  
Cold Compression ◽  
Die Forging ◽  
Compression Deformation ◽  
Forging Press

Quenching residual stresses in Al-Mg-Si alloy forged disc were balanced via cold deformation compression method. In this experiment firstly, the forged disc of Φ210x52 mm was prepared from extruded stock material of Φ160x90 mm through close die forging technique. Next, the forged discs were quenched in water and cold compressed immediately. Finally, the discs were artificial aged to finish in T652 temper. Close die forging and cold compression deformation was performed on a 1200 Ton hydraulic forging press. The amount of cold compression deformation was varied from 2.0 to 5.0% to gauge the optimum level of cold compression for the removal of quenching residual stresses. The residual stresses were measured in terms of dimensional stability of the machined component. Results showed that the 3.8% cold compression deformation was the optimized value for the work piece geometry under investigation. Further, the effect of cold (room temperature) and hot water (~60°C) quenching on the residual stresses was also studied and compared with that of cold compression method.

The Application Study of Accumulator Used in Hydraulic System of 20MN Fast Forging Machine

2011 ◽  
Vol 80-81 ◽  
pp. 870-874 ◽  
Author(s):  
Min Qiang Dai ◽  
Sheng Dun Zhao ◽  
Xiao Mei Yuan
Keyword(s):  
Energy Conservation ◽  
Hydraulic System ◽  
Pressure Pulsation ◽  
Test System ◽  
Hydraulic Shock ◽  
Application Study ◽  
Calculation Results ◽  
Set Up ◽  
Forging Press ◽  
Made In

Based on the description of 20MN fast forging press hydraulic system, the paper analyzed the possibility of energy conservation which the accumulator made in the fast forging machine system. When accumulator was used in fast forging machine, then analyzed the calculation results, and the energy conservation program of fast forging machine energy accumulator was evaluated briefly. The test system was set up on 20MN fast forging machine, and the paper researched the application of accumulator in fast forging press hydraulic system on absorbing hydraulic shock and eliminating pressure pulsation.

Online Multi-Channel Forging Tonnage Monitoring and Fault Pattern Discrimination Using Principal Curve

2004 ◽  
Author(s):  
Jihyun Kim ◽  
Qiang Huang ◽  
Jianjun Shi ◽  
Tzyy-Shuh Chang
Keyword(s):  
Process Monitoring ◽  
Process Condition ◽  
Pattern Discrimination ◽  
Process Conditions ◽  
Late Response ◽  
Principal Curve ◽  
Whole Process ◽  
Online Process Monitoring ◽  
Real Time Information ◽  
Forging Press

Due to late response to process condition changes, forging processes are normally exposed to large number of defective products. To achieve online process monitoring, multi-channel tonnage signals are often collected from the forging press. The tonnage signals contain significant amount of real time information regarding the product and the process conditions. In this paper, a methodology is developed to detect profile changes of multi-channel tonnage signals for forging process monitoring and to classify fault patterns. The changes include global or local profile deviations, which correspond to deviations of a whole process cycle or process segment(s) within a cycle respectively. Principal curve method is used to conduct feature extraction and discrimination of tonnage signals. The developed methodology is demonstrated with industry data from a crankshaft forging processes.

scholarly journals New Technologies for Producing Bicycle Hub Forging

2018 ◽  
Vol 220 ◽  
pp. 02003 ◽  
Author(s):  
Andrzej Gontarz ◽  
Anna Dziubiñska ◽  
Grzegorz Winiarski ◽  
Arkadiusz Tofil
Keyword(s):  
Energy Consumption ◽  
New Technologies ◽  
The Other ◽  
Considerable Decrease ◽  
Manufacturing Costs ◽  
Forging Process ◽  
Tube Billet ◽  
Potential Benefits ◽  
Forging Press ◽  
Hammer Forging

The paper presents the results of research on two new forging processes for producing bicycle hub forgings in a three-slide forging press. The first process is related to producing a forging with an axial cavity by flashless forging. The other one concerns the production of a forging from a tube billet. The potential benefits offered by these two new forging processes compared to the conventional hammer forging method for producing hubs are discussed. The designed processes are verified theoretically via numerical simulations. The first of the proposed processes is also subjected to experimental verification. The results demonstrate that the new technologies allow obtaining good quality products. A comparison is made between material and energy consumption in the two analyzed processes and in conventional hammer forging. It is found that the application of the forging process in a three-slide forging press leads to a considerable decrease in manufacturing costs.

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