Abstract: A method of determining the wear of a flank of a cutter tool, in which the wear is determined by a general function calculating a characteristic length of the wear as a function of at least one variable that depends on time, is provided.

Abstract: The invention relates to a replacement device (1) for replacing machining inserts (900) on a tool (800) comprising a body (810) and a head (820) carrying at least one machining insert (900), each insert being held on the head (820) by a screw.

Abstract: The invention relates to a replacement device (1) for replacing machining inserts (900) on a tool (800) comprising a body (810) and a head (820) carrying at least one machining insert (900), each insert being held on the head (820) by a screw.

Abstract: A method of determining the wear of a flank of a cutter tool, in which the wear is determined by a general function calculating a characteristic length of the wear as a function of at least one variable that depends on time, is provided.

Abstract: A method for resurfacing at least one arm of an intermediate casing of a turbomachine, such as a turbojet engine or a turboprop engine of an aircraft, including striking off at least one end of the arm to be resurfaced, resurfacing the struck-off end of the arm by adding filler metal using a short-circuit transfer MIG welding method, also called CMT (Cold Metal Transfer) method, machining the resurfaced portion of the arm so as to provide it with the required geometry.

Abstract: A device for cutting a fibrous preform, for production of a part made of a composite material by injection of resin under vacuum. The device includes a die for receiving the preform, on which a template of outer edges of the part is referenced, a mechanism cutting outer edges of the preform according to the template, and a mechanism for cooling the preform that is suitable for solidifying a liquid forming a substrate for the preform.

Abstract: A method for machining at least one aircraft gas turbine engine rotor blade wear indicator is provided. The method includes machining the wear indicator using a laser so as to melt part of the blade, and collecting the molten material of the blade. The method further includes fitting a plug into the bathtub squealer. The plug includes at least one cavity for receiving the molten blade material.

Abstract: An installation for fabricating a part by selectively melting powder, the installation including a mechanism producing a beam, for example a laser beam or an electron beam, and a mechanism moving a point of impact of the beam over a layer of powder. The installation further includes a collector element for collecting projections of molten powder produced during local melting of the powder by the beam, the collector element including an opening for passing the beam, and a mechanism configured to move the collector element jointly with the beam over the layer of powder.

Abstract: An electrode for breaking an edge of a part by electrochemical machining, the electrode including at least one conductive zone configured to be arranged facing an edge of the part that is to be broken. The conductive zone is of a shape that is complementary to the shape of the broken edge to be produced and is arranged between a first portion forming an insulating extra thickness and an insulating second portion for positioning the conductive zone so that it faces the edge to be broken.

Abstract: A device for cutting a fibrous preform, for production of a part made of a composite material by injection of resin under vacuum. The device includes a die for receiving the preform, on which a template of outer edges of the part is referenced, a mechanism cutting outer edges of the preform according to the template, and a mechanism for cooling the preform that is suitable for solidifying a liquid forming a substrate for the preform.

Abstract: The invention relates to a tool for machining hard materials such as metal-matrix or organic-matrix composite materials, comprising a cylindrical sonotrode (22) connected, along the axis (A) of said cylinder, to an assembly vibrating at a predetermined ultrasonic frequency and rotated about said axis, and at least one nozzle (3), on the surface to be machined and at the terminal end (24) of the sonotrode, for ejecting a liquid in which abrasive particles are suspended, said particles being vibrated at said ultrasonic frequency by the sonotrode so as to form a drilling head along the axis (A) of the cylinder, characterized in that the circumference (23) of the sonotrode is covered with particles of a so-called superhard material in order to form a milling head capable of moving in a plane that is substantially perpendicular to said vibratory axis (A).

Abstract: A method for machining at least one aircraft gas turbine engine rotor (1) blade (2) wear indicator (41, 42, 43), comprising a step of machining the wear indicator (41, 42, 43) using a laser (L) so as to melt part of the blade (2), and a step of collecting the molten material of the blade (2). For preference, the method comprises a step of fitting a plug (8) into said bathtub squealer (23), said plug (8) comprising at least one cavity (81, 82, 83) for receiving the molten blade (2) material.