Orbital Forming of Automotive Wheel Bearings

2019 ◽  
Author(s):  
Jake Sponsler
Keyword(s):  
Orbital Forming

scholarly journals Deformation Characteristics and Microstructure Analysis of Aluminum Alloy Component with Complex Shape by Cold Orbital Forming

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 808
Author(s):  
Wei Feng ◽  
Chaoyi Jin ◽  
Jiadong Deng ◽  
Wuhao Zhuang
Keyword(s):  
Aluminum Alloy ◽  
Complex Shape ◽  
Fe Simulation ◽  
Effective Strain ◽  
Electron Back Scatter Diffraction ◽  
Main Body ◽  
Deformation Characteristics ◽  
Alloy Component ◽  
Forming Process ◽  
Orbital Forming

This work aimed to study the deformation characteristics and microstructure of AA6063 aluminum alloy component with complex shape manufactured by cold orbital forming processing. The material flowing behavior was analyzed by Finite Element (FE) simulation and forming experiments were carried out using bar blank with different lengths. The microstructure of the boss zone cut from the formed samples was observed using scanning electron microscopy (SEM) and electron back-scatter diffraction (EBSD). FE simulation and experiment results both showed the aluminum base can be formed using cold orbital forming process. The distributions of the effective strain of the component with different blank lengths were almost the same, and the effective strain was bigger at the boss and the flash as the forming finished. The material flow is complex, especially in the boss, and the folding defect was observed at the root of the boss. The distribution of Mg2Si strengthening precipitate is more homogeneous in the matrix, has a different shape, and shows directivity at different position of boss zone. The grains are elongated, and the extent is different at different positions of the boss zone after cold orbital forming, and the crystal orientation discrepancy is smaller in the component main body and bigger in the boss zone. Subsequent forming process and blank optimization need to be further researched to improve forming quality.

Research on Cold Orbital Forming of Complex Sheet Metal of Aluminum Alloy

2017 ◽  
Vol 139 (6) ◽  
Author(s):  
Xinghui Han ◽  
Qiu Jin ◽  
Lin Hua
Keyword(s):  
Plastic Deformation ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Mobile Phone ◽  
Sheet Metal ◽  
Experimental Results ◽  
Complex Motion ◽  
Flow Lines ◽  
Inner Surface ◽  
Orbital Forming

This study aims at exploring the potentialities of cold orbital forming in forming complex sheet metal. Aiming at a complex mobile phone shell component of aluminum alloy, two technical schemes for cold orbital forming are first presented. Then, the optimized one, i.e., the more complex inner surface of mobile phone shell is arranged to be formed by the rocking punch with a complex motion, is determined by analyzing the nonuniform plastic deformation laws and punch filling behaviors. On the basis of the optimized technical scheme, the blank geometry in cold orbital forming of mobile phone shell is also optimized based on the forming status of the most difficult forming zone. The consistent finite element (FE) simulated and experimental results indicate that under the optimized technical scheme, not only the bosses in the mobile phone shell are fully formed but also the obtained flow lines are reasonable, which proves that the technical scheme presented in this study is feasible and cold orbital forming exhibits huge potentialities in forming complex sheet metal.

Dielectric Properties of ZrC by Electron Energy Loss Spectroscopy

2001 ◽  
Vol 7 (S2) ◽  
pp. 1152-1153
Author(s):  
F. Espinosa-Magaña ◽  
A. Duarte-Moller ◽  
R. Martínez-Sánchez ◽  
F. Paraguay-Delgado
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Zirconium Carbide ◽  
Electronic Configuration ◽  
Hard Coatings ◽  
Ionic Character ◽  
Covalent Bonds ◽  
Orbital Forming ◽  
Electron Energy Loss

Zirconium carbide belongs to the group of refractory compounds having NaCl structure with high chemical inertness and melting point, characteristics that have made these materials to play a prominent role as hard coatings and these properties are closely related to their electronic structure. The electronic configuration of ZrC is: (Xe) 5d2 6s2, one s electron being able to be promoted to a d orbital forming four equivalent sd3 hybrid orbitals, favoring covalent bonds maintaining, however, a percentage in ionic character of about 30%.Some attention has been paid in the last two decades in studying the optical properties of transition metal carbides and nitrides by electron energy loss spectroscopy (EELS), being TiC and TiN the most extensively reported.In this work the optical constants of commercial powder ZrC were obtained using a Gatan Parallel Detection Electron spectrometer (model 766) attached to the CM-200 transmission electron microscope (TEM).

scholarly journals Fitting Pipe Flange Process Research Using Orbital Forming

2015 ◽  
Vol 14 (6) ◽  
pp. 57-62 ◽  
Author(s):  
TaeGual Kim ◽  
JoonHong Park ◽  
YoungChul Park
Keyword(s):  
Process Research ◽  
Orbital Forming

New Aspects of Orbital Forming Technology

2003 ◽  
Vol 233-236 ◽  
pp. 413-418 ◽  
Author(s):  
Stanislav Rusz ◽  
Miroslav Greger
Keyword(s):  
Forming Technology ◽  
Orbital Forming

Joining of hybrid semi-finished products from sheet metal by orbital forming

2021 ◽  
pp. 146442072110676
Author(s):  
Andreas Hetzel ◽  
Michael Lechner ◽  
Marion Merklein
Keyword(s):  
Material Flow ◽  
Carbon Dioxide Emissions ◽  
Manufacturing Industry ◽  
Process Time ◽  
Material Strength ◽  
Lightweight Construction ◽  
Radial Cross Section ◽  
Peeling Strength ◽  
Orbital Forming ◽  
Functional Components

Contrary demands like a reduction of carbon dioxide emissions and an increase in functionality are facing the manufacturing industry with growing challenges. When processing functional components, like synchronizer rings, conventional process chains, like shearing and subsequent joining, are reaching their limits due to an increased complexity of the components and a lack in efficiency, referring to the long process time. To meet these challenges, the strategy of lightweight construction combines the application of lightweight materials with efficient manufacturing processes and an innovative product design. One possibility within lightweight construction is the utilization of load-adapted hybrid components, featuring different material strength classes. In previous research, the process of orbital forming is used to manufacture semi-finished products with a varying thickness profile due to the specific radial material flow. This material flow should now be used to realize a permanent joint between materials of two different strength levels. Therefore, the process of orbital forming is modified to manufacture hybrid semi-finished products from a dual-phase steel DP600 and a naturally rigid aluminum alloy EN AW 5754, both with an initial thickness of 2.0 mm. Different joint geometries are cut by laser into a steel ring and the part is coaxially positioned around a basic aluminum disc inside a die and subsequently formed. The joint is investigated regarding the geometrical and mechanical properties, comparing a radial cross-section and the micro hardness distribution. In order to reveal the potential of orbital forming for a combined forming and joining operation, the axial as well as the peeling strength of the multi-material components are investigated and evaluated.

Kinematic Process Plastic Cold Orbital Forming

2015 ◽  
Vol 808 ◽  
pp. 98-103
Author(s):  
Sorin Dumitru Grozav ◽  
Vasile Adrian Ceclan ◽  
Antoniu Turcu ◽  
Ovidiu Vasile Oprea
Keyword(s):  
Plastic Deformation ◽  
Finite Number ◽  
Deformation Process ◽  
Mobile Element ◽  
Detailed Knowledge ◽  
Closed Cycle ◽  
Plastic Deformation Process ◽  
Orbital Forming ◽  
Machine Setting ◽  
Trajectory Equation

In the paper before you, the authors study the kinematics of the orbital deformation process on the base of the trajectory equation of the mobile element of the machine. Also, the authors show that the trajectory is a closed cycle curve with a finite number of lobes. Relations and charts are presented for the calculation of the number of lobes and their width depending on the machine setting. The upper mold half trajectory choice (active tool) to match the best part deformed kinematics requires detailed knowledge of orbital plastic deformation process, something which develops in the present paper.

Orbital forming of an oxygen cylinder web

1997 ◽  
Vol 64 (1-3) ◽  
pp. 215-222 ◽  
Author(s):  
E. Kalinowska-Ozgowicz ◽  
W. Krukiewicz ◽  
L. Kowalski ◽  
R. Kozik ◽  
J. Rabus ◽  
...  
Keyword(s):  
Orbital Forming
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