A method for supplying cutting oil in a machine tool for cutting work pieces, including the steps of retaining cutting oil in a minimum reference quantity or an initial reference quantity in the cutting-oil tank, measuring a supply quantity per unit time q of the cutting oil flowing out from the cutting-oil tank and supplied to a cutting area of work pieces, either supplying the cutting oil to the cutting-oil tank by a quantity per unit time q larger than q and the supply is stopped in the case where the cutting-oil tank is filled, and the supplying and stopping are repeated as necessary, or supplying the cutting oil to the cutting-oil tank by a quantity per unit time equal to the supply quantity per unit time q.

The invention relates to a tool receptacle 1 comprising a receiving body 3, which has a receiving opening 5 for a tool shaft 6 of a tool and a first fluid supply structure 22, 33 and 35 for supplying fluid to the tool, said fluid supply structure extending through the receiving body 3. In order to allow a diversified supply of working fluids to the tool, a second fluid supply structure 23, 34 and 41, which is not connected with the first fluid supply structure 22, 33 and 35, extends through the receiving body 3, hereby allowing a fluid supply to the tool which is separate from the first fluid supply structure 22, 33 and 35.

A drill bit having an interior canal for liquid nitrogen to pass longitudinally through the body of the drill bit. The canal has, on the side of a cutting edge of the drill bit, at least one liquid nitrogen ejection duct that opens near the cutting edge which is formed by an insert made with polycrystalline diamond fixed to the body of the drill bit. A device for drilling a metal-composite stack includes the drill bit, a liquid nitrogen production unit and a distribution network to distribute the liquid nitrogen. The device drills through a metal-composite stack in a single pass of the drill bit. The liquid nitrogen at cryogenic temperature is conveyed close to the cutting edge, at least while the cutting edge is in contact with the metallic material.

A machine tool coolant supply system includes a chassis configured to mount the coolant supply system to a coolant storage tank of a machine tool. The coolant supply system further includes a concentrate tank arranged within the chassis, a first flow control valve coupled to the concentrate tank, a second flow control valve coupled to a water supply line, and a mixer configured to mix a concentrate with water. The mixer includes a first inlet coupled to the first flow control valve and configured to receive the concentrate from the concentrate tank via the first flow control valve, a second inlet coupled to the second flow control valve and configured to receive the water from the water supply line via the second flow control valve, and an outlet configured to dispense a mixture of the concentrate and the water into the coolant storage tank of the machine tool. The coolant supply system further includes a control line arranged in electrical communication with the first flow control valve and the second flow control valve, wherein the control line is configured to communicate control signals from a machine tool control system to actuate the first flow control valve and the second flow control valve to control a ratio of the concentrate and the water supplied to the mixer.

A fluid sterilization apparatus includes: a flow passage for causing a fluid to flow; and a light source that irradiates the fluid flowing in the flow passage with ultraviolet light of a wavelength of 290310 nm. The fluid contains a cutting fluid for a cutting work or Japanese sake in the process of manufacturing.

A machining process includes providing a cutting tool having a rake face and a flank face; bringing the cutting tool into contact with a metal alloy work piece to form a chip by penetrating the cutting tool into the workpiece; and introducing a nanofluid into a vicinity of the penetration to remove heat and, in some instances, customize the finished surface. The nanofluid includes a mixture of a cryo-liquid and nanoparticles having a maximum size of approximately 0.1 nanometers to approximately 100 nanometers.

Aqueous metal working fluids, concentrates thereof, and processes to reduce the presence of Mycobacterium in the aqueous metal working fluids, or in a metal working environment.

A processing machine and method for planing an end surface of a finished pipe with a clamping device for the pipe to be processed via a tool holder with a planing tool, whereby the tool holder is driven by a motor and can rotate about an axis of rotation. The tool holder is driven by a motor so that it can rotate about an axis of rotation, whereby the clamping device and the tool holder are driven by a motor and can move toward one another in a direction parallel to the axis of rotation of the tool holder. The processing machine includes a cooling device that is arranged in such a manner that it cools the pipe to be processed and/or the planing tool with the aid of liquid and/or solid carbon dioxide during the operation of the device.

A toolholder includes a pocket assembly having a nest section and a clamp section. An inverted nest is mounted in the nest section and includes an insert-receiving pocket for accommodating a cutting insert mounted therein. A clamping wedge is mounted in the clamp section in such a way that the cutting insert engages the clamping wedge. The inverted nest includes one or more coolant grooves that cooperate with the cutting insert for directing super critical carbon dioxide to a cutting tool/workpiece interface.

A foam control agent and method of controlling foam for metal working fluids by use of a foam control agent, wherein the agent comprises at least a branched alcohol.