Experimental study and finite element analysis on the frame of multi-directional forging press

Wang, Wenjie; Feng, Lin; Zhang, Lei; Wang, Xin

doi:10.1177/0954405415624658

Cited by 6 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The magnitude of the friction factor prevailing at the die/billet interface is using the constant shear model of 0.25 for the well lubricated case. 24 The forging temperature of the billet is initially set up to 1150 °C. Figure 6(a) and (b) illustrates the schematic simulation for upsetting and FF processes for type A and type B, respectively.…”

Section: Deformation Mechanismmentioning

confidence: 99%

“…22,23 FE analysis was also utilized in the multi-directional forging presses to simulate the stiffness and deformation characteristic of preload frame structure under different loading states. 24 Moreover, a FE model has been developed to simulate the residual stresses as generated from quenching T-section components of AA7050 aluminum alloy. In particular, the recent investigation on the multi-stage warm forging (MSWF) process of deep groove ball bearing (DGBB) had been performed numerically and experimentally with the impact of a modified punch geometry as well as relevant microstructure and defect analysis.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Deformation mechanism of forging tool for multi-stage forming of deep groove ball bearing

Liao¹,

Hsu

Huang

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

In this study, two design configurations routinely adopted in actual mass production for deep groove ball bearing rings of multi-stage warm forging process are investigated numerically and experimentally. The deformation mechanism, forging defects, microstructures, and compositions analysis are the main focus of this study. For type A design with a stepped configuration, inner and outer rings are automatically pierced and separated in the multi-step forging machine. On the other hand, for the type B geometry, additional step is required by the customized milling machine. For type A design, the main issue encountered during actual forging process is the inadequate material filling at the upper corner radius and folding defects at the transition area of inner wall of forgings. For type B design, the material flow is unsatisfactorily directed and lower outer radius is insufficiently filled. Therefore, variations of forging parameters include billet weight, punch/knock out pin geometry and the effect of lubricating fluid is systematically investigated. In addition, the finite element method has been performed and compared with the actual forging experiments. In summary, the modification of tooling design, dimension variation of billet weight, and the forging temperature difference as impacted by the lubricating fluid, which are identified as the three major factors of the forging integrity and stability of the mass production process. The results are particularly useful for the advanced tooling design and contribute largely to minimize the tool failure and the integrity of the bearing forged.

show abstract

Section: Deformation Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deformation mechanism of forging tool for multi-stage forming of deep groove ball bearing

Liao¹,

Hsu

Huang

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

show abstract

“…Of course, for calibration of the aggregate’s measuring elements, classical measurement methods are applied (rectilinearity and perpendicularity masters, gauge blocks, time sensors), as well as much more advanced systems allowing a non-contact dynamic analysis with the use of an image and structured light analysis (e.g., Aramis and others). At the stage of design, a whole range of modern methods supporting the design and analysis is applied, that is CAD (Computer-aided Design)/CAM (Computer-aided Manufacturing)/FEM (Finite Element Method) programs, which also enable an analysis of deformations and dynamic accelerations during the forging process [ 39 , 40 , 41 , 42 , 43 ]. However, often, despite the use of many modern measurement methods and advanced CMM systems, both in new installations and those after reparation, modernization or improvement, we can encounter problems resulting in geometrically and qualitatively inappropriate products of the forging process, i.e., forgings [ 44 ], whose elimination is difficult in a real process [ 45 , 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

Application of 3D Scanning as an Indirect Method to Analyze and Eliminate Errors on the Manufactured Yoke-Type Forgings Forged in SMED Device on Modernized Crank Press

Ziemba

Hawryluk

Rychlik³

2020

Materials

View full text Add to dashboard Cite

This article proposes an indirect measurement method based on a dimensional and shape analysis of forgings for the evaluation of the manufacture and the proper operation of the key elements of the crank press, in which after modernization, a quick tool assembly based on SMED (Single Minute Exchange of Die) was implemented. As a result of the introduced changes aiming at improving the forging aggregate and increasing the production efficiency, errors were observed on the manufactured products-forgings in the form of twists and joggles. In order to solve the problem, a lot of advanced methods was used, including: dynamic system of deformation analysis, numerical modeling and as well as dimensional and shape analysis by 3d scanning. Despite the above, this approach (classic way) did not solve the problem. A proprietary method with the use of 3D reverse scanning was proposed, which allows to solve the problem of forgings errors. Based on the measurement results and analyses for a few variants of production cycles, the necessary changes were obtained, making it possible to minimize the errors and obtain proper products in respect of geometry and quality.

show abstract

“…Aramis and others). At the stage of design, a whole range of modern methods supporting the design and analysis is applied, that is CAD/CAM/MES programs, which also enable an analysis of deformations and dynamic accelerations during the forging process [39,40,41,42,43]. However, often, despite the use of many modern measurement methods and advanced CMM systems, both in new installations and those after reparation, modernization or improvement, we can encounter problems resulting in geometrically and qualitatively inappropriate products of the forging process, i.e.…”

Section: Introductionmentioning

confidence: 99%

Application of 3D Scanning as an Indirect Method to Analyze and Eliminate Errors on the Manufactured Yoke-Type Forgings Forged in SMED Device on Modernized Crank Press

Ziemba

Hawryluk

Rychlik³

2020

Preprint

View full text Add to dashboard Cite

The article proposes an indirect measurement method based on a dimensional and shape analysis of forgings for the evaluation of the manufacture and the proper operation of the key elements of the crank press, in which after modernization, a quick tool assembly based on SMED (Single Minute Exchange of Die) was implemented. As a result of the introduced changes aiming at improving the forging aggregate and increasing the production efficiency, errors were observed on the manufactured products-forgings in the form of twists and joggles. The preliminary analysis showed that they can be clearances and dynamic deformation in the kinematic chain, the occurrence of side forces during automatic forging of the forging in a two-component system (a long, thin element), as well as the design and construction errors in the joining of the SMED instrument with the table tops of the press. In order to solve the presented problem, in the first place, a separate dimensional and shape analysis was made of selected elements of the press and the instrumentation with the use of the 3D scanning method with the purpose to analyze the construction tolerances of the key elements of the press geometry. Next, an evaluation of the effect of clearances and dynamic deformations of the press as well as the force distribution during the forging process was made through numerical modelling. Despite all of the above, such an approach did not make it possible to solve the problem. A proprietary method with the use of 3d reverse scanning was proposed, which allowed to solve the problem of forgings errors. Based on the measurement results and analyses for a few variants of production cycles the necessary changes was obtained, making it possible to minimize the errors and obtain proper products in respect of geometry and quality.

show abstract

Experimental study and finite element analysis on the frame of multi-directional forging press

Cited by 6 publications

References 16 publications

Deformation mechanism of forging tool for multi-stage forming of deep groove ball bearing

Deformation mechanism of forging tool for multi-stage forming of deep groove ball bearing

Application of 3D Scanning as an Indirect Method to Analyze and Eliminate Errors on the Manufactured Yoke-Type Forgings Forged in SMED Device on Modernized Crank Press

Application of 3D Scanning as an Indirect Method to Analyze and Eliminate Errors on the Manufactured Yoke-Type Forgings Forged in SMED Device on Modernized Crank Press

Contact Info

Product

Resources

About