Results 131 to 140 of about 9,590 (172)
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Process parallel simulation of workpiece temperatures using sensory workpieces
CIRP Journal of Manufacturing Science and Technology, 2018Abstract Process induced heat causes workpiece shape deviations during machining and may result in rejected parts. As unpredictable processing and boundary conditions cannot be simulated in the process planning phase, a process parallel simulation of the workpiece temperature is required to observe and compensate thermal effects.
Berend Denkena +4 more
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Review of Scientific Instruments, 2021
The milling of highly flexible workpieces, such as thin-walled structures used in turbine blades, aerospace equipment, and jet engine compressors, requires vibration compensation to improve the quality of the workpiece surface. Vibration can be reduced by selecting appropriate cutting parameters. However, this approach reduces system productivity. This
T. H. Hong +4 more
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The milling of highly flexible workpieces, such as thin-walled structures used in turbine blades, aerospace equipment, and jet engine compressors, requires vibration compensation to improve the quality of the workpiece surface. Vibration can be reduced by selecting appropriate cutting parameters. However, this approach reduces system productivity. This
T. H. Hong +4 more
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20th Design Automation Conference: Volume 2 — Robust Design Applications; Decomposition and Design Optimization; Optimization Tools and Applications, 1994
Abstract In this paper, we present the spatial and planar force-displacement relationships which characterize individual contacts on a fixtured workpiece. The compliance at each contact is modeled and expressions for the changes in contact forces as a function of the rigid body relative motion between the fixture elements and the ...
Joseph P. Donoghue +2 more
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Abstract In this paper, we present the spatial and planar force-displacement relationships which characterize individual contacts on a fixtured workpiece. The compliance at each contact is modeled and expressions for the changes in contact forces as a function of the rigid body relative motion between the fixture elements and the ...
Joseph P. Donoghue +2 more
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2009
A plurality of discs (7) arranged along a central shaft and having holders (8) uniformly distributed over the circumference, inclined obliquely outwards and intended for workpieces are supported in each case on a ring (5) surrounding the discs (7). The successive rings (5) form an approximately cylindrical cladding which prevents undesired coating of ...
OERLIKON TRADING AG, ESSER STEFAN
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A plurality of discs (7) arranged along a central shaft and having holders (8) uniformly distributed over the circumference, inclined obliquely outwards and intended for workpieces are supported in each case on a ring (5) surrounding the discs (7). The successive rings (5) form an approximately cylindrical cladding which prevents undesired coating of ...
OERLIKON TRADING AG, ESSER STEFAN
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Tolerance Control in Workpiece Fixturing
Volume 4: 4th Design for Manufacturing Conference, 1999Abstract When designing parts with tight tolerances, care must be paid to ensure that specified accuracy can be yielded despite manufacturing deviations. An issue to be considered is how deviations on datum elements propagate on toleranced features, taking into account configuration of locating fixtures used in manufacturing set-ups. The
ARMILLOTTA, ANTONIO +4 more
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2008
This chapter presents an analysis of workpiece surface integrity. The definition and material and mechanical aspects of surface integrity are discussed.
Joël Rech +2 more
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This chapter presents an analysis of workpiece surface integrity. The definition and material and mechanical aspects of surface integrity are discussed.
Joël Rech +2 more
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Machining of Magnesium Workpieces
Advanced Engineering Materials, 1999Cutting tools coated with polycrystalline diamond (DP) show a superior behavior in dry machining of magnesium alloys compared to uncoated or TiN-coated cermented carbide tools. With their usage one can best avoid adhesion between cutting tool and workpiece material as well as material build-up.
T. Friemuth, J. Winkler
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2005
Abstract The material data for forging can be divided into two categories, namely, mechanical properties and thermophysical properties. This article describes the flow characteristics of key engineering materials, such as steels, aluminum alloys, copper alloys, titanium alloys, and nickel-base superalloys. It discusses the thermophysical
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Abstract The material data for forging can be divided into two categories, namely, mechanical properties and thermophysical properties. This article describes the flow characteristics of key engineering materials, such as steels, aluminum alloys, copper alloys, titanium alloys, and nickel-base superalloys. It discusses the thermophysical
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Analysis of Workpiece Stability
2021The fixturing of workpiece in a fixture is a unified process in which locating and clamping are closely related to each other.
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Metrology and Workpiece Quality
2011The basic task of manufacturing is to provide workpieces with specified quality characteristics in the demanded quantity in the most time- and cost-efficient way possible. Every manufacturing process is affected by variable disturbances, which can be both external and internal (occurring within the process itself).
Fritz Klocke, Aaron Kuchle
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