Results 271 to 280 of about 57,136 (306)

A combination styrofoam cutter/block checker for fabricating field shaping blocks

International Journal of Radiation Oncology*Biology*Physics, 1977
Abstract The design and construction of a styrofoam cutter in which the mould and block can be checked for fabrication accuracy is described.
J A, Purdy, A, Sorensen, J, Eisenhoffer
openaire   +2 more sources

THE ROUND SHAPED CUTTERS PROFILE CALCULATION FOR EXTERNAL PROCESSING

Science and Technology of Kazakhstan
In this article, an original method for the graph-analytical profiling of round-shaped form tools for external processing is proposed, distinguished by its ability to systematize and automate calculations. Unlike existing approaches, the new method allows for the calculation of the cutter profile with a frontal surface of circular shapes, using both ...
null B. K. Kairolla, null B. N. Absadykov, null A. Zh. Kassenov, null A. V. Mazdubay, null Kh. Mahkamov   +4 more
openaire   +1 more source

IGEL

Proceedings of the 8th International Conference on Virtual Reality Continuum and its Applications in Industry, 2009
Heat cutter is a tool for processing styrene forms. Since blades of cutters are steal wires, user can freely bend them. We think this operation is intuitive for 3D shape modeling. IGEL virtually realizes the operation of the heat cutters by a sketch input system. IGEL has two different modes, 2D and 3D modes, and users can switch them freely.
Hitomi Imaizumi, Takayuki Itoh
openaire   +1 more source

Geometric modeling and grinder design for toroid-cone shaped cutters

The International Journal of Advanced Manufacturing Technology, 2005
This paper presents a set of mathematical models for the design and manufacture of the helical flute and cutting-edge curve of a toroid-cone shaped revolving cutter. The study not only considers the section profile and relative feeding velocities of the grinding wheel used in the NC machining of the cutter, but also addresses the deviation of the ...
Jone-Ming Hsieh, Ying-Chien Tsai
openaire   +1 more source

Micromilling of NiTi Shape-Memory Alloys with Ball Nose Cutters

Materials and Manufacturing Processes, 2009
Micromilling of NiTi shape-memory alloys (SMA) places high demands on tools and machining processes. NiTi is classified as a difficult-to-cut material due to its special properties. A new approach to machine NiTi with higher process flexibility is the application of ball nose cutters in micromilling processes. The article presents the latest results of
Dirk Biermann, Felix Kahleyss, Tobias Surmann   +2 more
openaire   +1 more source

Star and flower shaped cells are anything but cookie-cutter

New Scientist, 2010
The shape of a mould a cell is grown in determines whether it becomes fat or bone, which could lead to new ways to coax stem cells into specific tissues for transplant into ...
openaire   +1 more source

New Prediction Method for ROP Potential of Shaped PDC Cutters

SPE Journal
Summary Mechanical specific energy (MSE) is normally used to evaluate the rock-cutting efficiency of shaped polycrystalline diamond compact (PDC) cutters. The lower the MSE, the higher rock-breaking efficiency the cutters and the bits will have, and by default, it is considered that a higher rate of penetration (ROP) can be obtained ...
Wei Liu, Jiusen Wei, Yanbo Ge, Ziyang Tan, Deli Gao   +4 more
openaire   +1 more source

Shaping the Future with PDC Cutter Technology, Progress, and Next Steps

SPE/IADC International Drilling Conference and Exhibition
Abstract Recent improvements in Polycrystalline Diamond Compact (PDC) cutter technology manufacturing capability have led to denser, stronger diamond structures with much greater durability. The step change has made it possible to implement complex geometry PDC cutters on a much wider scale.
P. K. Centala, T. S. Roberts
openaire   +1 more source

Gear Cutting with Disk-Shaped Milling Cutters

2022
Sergii Pasternak, Yurii M. Danylchenko, Michael Storchak, Oleksandr A. Okhrimenko   +3 more
openaire   +1 more source

Rock Customized Shaped Cutters Improve Rock Cutting Efficiency

SPE/IADC International Drilling Conference and Exhibition, 2019
Abstract Failing the rock and removal of failed rock are the two primary actions that control drill bit efficiency. A proper design must address both primary actions while focusing on the major efficiency driver. This has been the basis for development of shaped cutter technology where the geometry of polycrystalline diamond compact (PDC)
openaire   +1 more source