Abstract: A tool holder which is provided with a plurality of different free jet turbines so that it can be operated, depending on the machining task, with different working rotational speeds and in different operating points.

Abstract: A fluid-powered high-speed spindle (100) having a longitudinal axis (A) defining an upper end defined by a shank and a lower end accepting a tool. The spindle includes a body (120), a rotatable shaft (530) supported by at least one bearing (508) within the body (120), a seal housing (150) connected to the body (120) at the lower end thereof, a cover (180) connected to the seal housing (150) at the lower end thereof, a fluid channel system for directing fluid from an entry port (102) to a nozzle (576) for turning a turbine (570) attached to the shaft (530); and a flinger (660) attached to the shaft (530) and positioned above the turbine (570). The flinger (660) and the seal housing (150) combine to form a non-contact seal (900) configured to impede the flow of fluid toward the at least one bearing (508).

Abstract: A machining center having at least one door to control access to an enclosure thereof, where access through the door is provided by an unlocked latch, and the latch is unlocked based on wirelessly communicated signals relaying information about at least one operating condition of a fluid driven cutting tool spindle in use within the machining center.

Abstract: A machining center having at least one door to control access to an enclosure thereof, where access through the door is provided by an unlocked latch, and the latch is unlocked based on wirelessly communicated signals relaying information about at least one operating condition of a fluid driven cutting tool spindle in use within the machining center.

Abstract: A fluid-powered high-speed spindle (100) having a longitudinal axis (A) defining an upper end defined by a shank and a lower end accepting a tool. The spindle includes a body (120), a rotatable shaft (530) supported by at least one bearing (508) within the body (120), a seal housing (150) connected to the body (120) at the lower end thereof, a cover (180) connected to the seal housing (150) at the lower end thereof, a fluid channel system for directing fluid from an entry port (102) to a nozzle (576) for turning a turbine (570) attached to the shaft (530); and a flinger (660) attached to the shaft (530) and positioned above the turbine (570). The flinger (660) and the seal housing (150) combine to form a non-contact seal (900) configured to impede the flow of fluid toward the at least one bearing (508).

Abstract: A fluid-powered high-speed spindle (100) having a longitudinal axis (A) defining an upper end defined by a shank and a lower end accepting a tool. The spindle includes a body (120), a rotatable shaft (530) supported by at least one bearing (508) within the body (120), a seal housing (150) connected to the body (120) at the lower end thereof, a cover (180) connected to the seal housing (150) at the lower end thereof, a fluid channel system for directing fluid from an entry port (102) to a nozzle (576) for turning a turbine (570) attached to the shaft (530); and a flinger (660) attached to the shaft (530) and positioned above the turbine (570). The flinger (660) and the seal housing (150) combine to form a non-contact seal (900) configured to impede the flow of fluid toward the at least one bearing (508).

Abstract: A fluid-powered high-speed spindle (100) having a longitudinal axis (A) defining an upper end defined by a shank and a lower end accepting a tool. The spindle includes a body (120), a rotatable shaft (530) supported by at least one bearing (508) within the body (120), a seal housing (150) connected to the body (120) at the lower end thereof, a cover (180) connected to the seal housing (150) at the lower end thereof, a fluid channel system for directing fluid from an entry port (102) to a nozzle (576) for turning a turbine (570) attached to the shaft (530); and a flinger (660) attached to the shaft (530) and positioned above the turbine (570). The flinger (660) and the seal housing (150) combine to form a non-contact seal (900) configured to impede the flow of fluid toward the at least one bearing (508).

Abstract: A metal cutting tool having an indexable cutting insert retained in an insert pocket of an insert holder. The cutting insert has two opposing side surfaces with a peripheral edge surface extending therebetween and a plurality of cutting portions. The peripheral edge surface has a plurality of abutment sections, each abutment section lying on a portion of a sidewall of an imaginary regular polygon. A plurality of cutting portions extend outwardly from the imaginary polygon and are equal in number to the number of side walls thereof. Each abutment section is located between two cutting portions. The insert holder has an insert pocket in which the cutting insert is retained with the peripheral edge surface being abutted at two abutment sections by two support walls of the insert pocket, the support walls being fixed and integral parts of the insert holder.

Abstract: A metal cutting tool having an indexable cutting insert retained in an insert pocket of an insert holder. The cutting insert has two opposing side surfaces with a peripheral edge surface extending therebetween and a plurality of cutting portions. The peripheral edge surface has a plurality of abutment sections, each abutment section lying on a portion of a sidewall of an imaginary regular polygon. A plurality of cutting portions extend outwardly from the imaginary polygon and are equal in number to the number of side walls thereof. Each abutment section is located between two cutting portions. The insert holder has an insert pocket in which the cutting insert is retained with the peripheral edge surface being abutted at two abutment sections by two support walls of the insert pocket, the support walls being fixed and integral parts of the insert holder.