Abstract:
L'invention concerne un procédé de préparation de la surface d'un substrat (100) à des fins d'accueil et de retenue d'un revêtement projeté par torche plasma, ledit procédé étant du type de celui comprenant une phase d'usinage, remarquable en ce qu'il comprend les phases suivantes; réaliser, au moyen d'un outil d'usinage (200) au moins, une rainure avec au moins un bord incliné, décaler l'outil (200), dans un mouvement relatif de l'outil par rapport à la surface du substrat (100), selon une direction perpendiculaire à l'axe longitudinal de la rainure et selon une course inférieure à la longueur projetée du bord incliné, appliquer ledit outil (200) sur le bord incliné de la rainure de façon à soumettre ce bord à une contrainte et créer une autre rainure décalée et ainsi de suite de sorte que les nervures (111, 112, 113, 114) finalement obtenues entre chaque rainure se déforment de façon irréversible sous l'action de l'outil (200) et adoptent des surfaces en contre-dépouille.
Abstract:
A combination end milling/drilling/reaming cutting tool includes an end milling portion, a drilling portion, and a reaming portion. The cutting tool also includes a neck portion between the end milling portion and the drilling portion, and a clearance neck portion between a shank and the reaming portion. A method of machining a workpiece using the combination end milling/drilling/reaming cutting tool is also disclosed.
Abstract:
A piston pin hole boring system and method of forming pin holes therewith includes fixing a piston to a fixture supported by a slide member. Then, rotating a cutting member about a first axis and moving the slide member with the fixture thereon toward the cutting member along the first axis and bringing the piston into cutting contact with the cutting member. Further, moving the fixture along second and third axes, each extending transversely to the first axis and machining the desired pin hole contours in the piston with the cutting member.
Abstract:
A workholding chuck can use actuating members that pivot within a non-split unitary front bearing. The non-split unitary front bearing can include pockets in its central bore that can allow a spherical section of an actuator arm to be inserted into the bearing. The spherical section can include radially recessed areas to facilitate the insertion into the bearing. The jaws can be retained to the actuator arms through the use of a quick-release assembly. The quick-release assembly allows the jaws to easily and quickly be changed to allow the chuck to grasp different workpieces.
Abstract:
A reamer (T) comprising three stages of chip groups (6), each having five chips (6) disposed on the circumference having a diameter smaller than an inner diameter of a hole (H) of a work (W), at a predetermined pitch (P) in an axial direction. When the axis (Lt) of the rotating reamer (T) is moved on the circumference having the axis (Lw) of the hole (H) as the center after the reamer (T) is fitted into the hole (H) of the work (W), three stages of the chip groups (6) simultaneously cut the inner peripheral surface of the hole (H). When the reamer (T) is moved in a pull-out direction from the hole (H) by one pitch (P), these three stages of the chip groups (6) simultaneously cut the inner peripheral surface of the hole (H) of the work (W) by one pitch (P). Therefore, a boring work of the hole (H) of the work (W) having a depth D = 3P can be completed within a short time.
Abstract:
Rotorblätter (11) für beispielsweise Windenergieanlagen werden aus zwei oder aus mehreren Rotorblattteilen (18) entlang der Rotorblattlängsrichtung zusammengesetzt. Dabei gestaltet es sich als schwierig, die einzelnen Rotorblattteile (18) so exakt bündig zu verbinden, dass die zur Bildung eines Flansches (20) des Rotorblattes (11) dienenden Flanschteile (21) der Rotorblattteile (18) in einer gemeinsamen Ebene liegen. Bei der Erfindung geht es darum, nach dem Zusammensetzen der Rotorblattteile (18) zu einem Rotorblatt (11) für insbesondere eine Windenergieanlage sukzessive verschiedene Bereiche des aus den Flanschteilen (21) zusammengesetzten Flansches (20) zu bearbeiten.
Abstract:
Verfahren zur Herstellung einer Ventilationsbohrung (1 ) in einem Lagerstuhl (2) eines Kurbelgehäuses (3) einer Hubkolben-Brennkraftmaschine durch Fräsen, wobei der Fräser (4) ein Winkelkopf-Fräser ist, der in Richtung einer Zylinder-Längsachse (Z) in das Kurbelgehäuse (3) eingebracht wird und in Richtung einer Kurbelgehäuse-Längsachse (K) verfahren wird, bis der Lagerstuhl (2) durchbrochen ist und anschließend Rückverfahren des Winkelkopf-Fräsers in Richtung der Kurbelgehäuse-Längsachse (K) und Ausbringen des Winkelkopf-Fräsers aus dem Kurbelgehäuse (3) durch Verfahren des Winkelkopf-Fräsers in Richtung der Zylinder-Längsachse (Z). Durch die erfindungsgemäße Herstellung der Ventilationsbohrung werden innere Spannungen im Kurbelgehäuse vermieden, wodurch in vorteilhafter Weise die Festigkeit des Kurbelgehäuses erhöht wird.
Abstract:
A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.
Abstract:
The present invention relates to tools for the machining of solid materials, namely an improved end-mill particularly suited for use in an orbital mode in the milling of recesses. The orbital milling tool for cutting openings in a solid material, wherein the openings include normal cylindrical through holes, blind holes, holes including recesses, screw threaded holes, tapered holes and double tapered holes, aid tool having a shank portion adjoining a cutting portion, the axis of the cutting portion being spaced apart from the spindle axis of a machine tool in which the shank is to be held. The cutting portion having a plurality of roughing cutting edges, a plurality of semi-finishing edges axially spaced apart by means of a first transition section from the roughing cutting edges and a plurality of finishing edges axially spaced apart by means of a second transition section from the semi-finishing cutting edges. The maximum diameter of the semi-finishing edges being larger than said roughing cutting edges and smaller than the finishing edges.