Results 181 to 190 of about 10,979 (218)

The Key Role of 3D TEE in Assessing the Morphology of Degenerative Mitral Valve Regurgitation. [PDF]

J Cardiovasc Dev Dis
Faletra FF, La Franca E, Leo LA, Sade LE, Katz W, Musumeci F, Gandolfo C, Pilato M, Cipriani M.   +8 more
europepmc   +1 more source

BICORN (Bilateral Iatrogenic Coronary Obstruction Risk Nullification) Procedure for Transcatheter Aortic Valve-in-Valve Replacement. [PDF]

JACC Case Rep
Ahmad T, Mascarenhas V, Bauch T, Wallen T, Carter RA.   +4 more
europepmc   +1 more source

Lessons learned during my 25 years as Dr. Carpentier's echocardiographer. [PDF]

Ann Cardiothorac Surg
Berrebi A.
europepmc   +1 more source

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Tool Path Planning with Confined Scallop Height Error Using Optimal Connected Fermat Spirals

Communications in Mathematics and Statistics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hong-Yu Ma, Chun-Ming Yuan, Li-Yong Shen
openaire   +2 more sources

Estimation of scallop height in freeform surface CNC Machining

The International Journal of Advanced Manufacturing Technology, 2019
Scallop height is primarily used to assess the quality of complex freeform surface parts manufactured on multi-axis computer numerical control (CNC) machines. Currently, the inspection methods used in practice are slow and expensive as they need sophisticated equipment and skilled personnel.
Kukreja, Aman, Pande, Sanjay S
openaire   +2 more sources

Constant scallop-height tool path generation for three-axis sculptured surface machining

Computer-Aided Design, 2002
This paper presents a new approach for the determination of efficient tool paths in the machining of sculptured surfaces using 3-axis ball-end milling. The objective is to keep the scallop height constant across the machined surface such that redundant tool paths are minimized.
Hsi-Yung Feng, Huiwen Li
openaire   +1 more source

Constant Scallop Height Algorithm of Self-Adaptive Tool Orientation with Toroidal Cutter

Advanced Materials Research, 2012
Using a 5-axis NC machining tool enables the tool to be oriented in any spatial direction to access a given point. This means interference can be avoided and the position of the tool can be optimized. This paper presents a new approach to generate gouging-free tool paths for constant scallop-height machining using 5-axis toroidal milling.
Ying Chen, Yi Qiang Wang, Chun Yan Tian
openaire   +1 more source

On Estimation of Scallop Height from CNC Part Programs

2019
Today, complex freeform surfaces are widely used on parts in automobile, aerospace, and die– mold industries. Multi-axis computer numerical control (CNC) machines are used to manufacture such parts as they need tighter tolerances and high surface finish to meet functional and aesthetic requirements.
A. Kukreja, S. S. Pande
openaire   +2 more sources

MULTI-POINT MACHINING WITH ANTI-GOUGING AND SCALLOP HEIGHT CONTROL

Transactions of the Canadian Society for Mechanical Engineering, 2004
Multi-Point Machining (MPM) is a tool positioning strategy for 5-axis machining of complex surfaces. A multi-point tool position results in tangential contact between the tool and the design surface at several points. By machining at several points on the tool simultaneously, material removal rates can be improved.
openaire   +1 more source