About: Tool bit is a research topic. Over the lifetime, 2085 publications have been published within this topic receiving 4714 citations. The topic is also known as: Box tool.
TL;DR: In this paper, a manual tool for removing material from brittle and/or nonductile stock includes a housing (1) with a drive unit (2) for a tool bit (3) located within the housing.
Abstract: A manual tool for removing material from brittle and/or non-ductile stock includes a housing (1) with a drive unit (2) for a tool bit (3) located within the housing (1). The tool bit is arranged to be rotated by the drive unit (3) about the bit axis. In addition, an electro-acoustic converter (4) for producing ultrasonic vibrations and a vibration amplifier (5) are positioned within the housing for superimposing ultrasonic vibrations on the rotational action of the tool bit during operation on the manual tool.
TL;DR: In this article, a method and apparatus by which the degree of wear and useful life limitations of a drill, end mill or other types of metal removal tools can be detected is presented.
Abstract: A method and apparatus by which the degree of wear and useful life limitations of a drill, end mill or other types of metal removal tools can be detected. The method is based on the short circuit current, open circuit voltage and/or power that is generated during metal removal by the utilization of an insulated rotary tool bit to which electrical contact is made by a non-rotating conductor and an insulated or non-insulated workpiece, with an external circuit connecting the tool and workpiece through a measuring device. The generated current, voltage or power shows a sharp increase or change in slope upon considerable tool wear and/or at the point of failure.
TL;DR: In this paper, a portable machining lathe with a rotating gear housing and a rotating race member is described, which is held in place by a plurality of roller bearings and a tool module having a tool bit (54) and automatically advances longitudinally along the work piece (38) by means of an advance mechanism.
Abstract: Disclosed is a portable machining lathe (10) having a stationary member (11) interconnected with a gear housing (16) which covers a rotating gear member (15). A circular race member (25) is connected to the gear member (15) and held in place by means of a plurality of roller bearings (20). A tool module (35) having a tool bit (54) machines the work piece (38) and automatically advances longitudinally along the work piece (38) by means of an advance mechanism (72).
TL;DR: In this article, a cutting tool holder, wrench or adaptor has a body portion which includes a flexible bellows torque drive which permits limited angular displacement between the body of the holder and the center line of the tool bit to maintain alignment between the cutting tool bit and the hole or tap being formed in an associated work piece during a cutting or forming operation.
Abstract: This disclosure is directed to a cutting tool holder, wrench or adaptor, as for example, a tap wrench and the like, having a body portion which includes a flexible bellows torque drive which permits limited angular displacement between the body of the holder or adaptor and the center line of the tool bit to maintain alignment between the cutting tool bit and the hole or tap being formed in an associated work piece during a cutting or forming operation. The tool holder further includes a shear safety to prohibit any breakage of the tool bit in the event the applied torque moment exceeds those forces which would otherwise break the tool bit.
Abstract: The invention relates to a coated tool bit for a dental drilling/cutting system. The tool bit is used to prepare an osteotomy in the jawbone of a patient. The tool bit is coated with a hard carbon coating/film. The coating can comprise diamond-like carbon (DLC), amorphous diamond, crystalline diamond, or a combination thereof. The tool bit includes drilling bits, threadformers, counterbores, and cutting tips of osteotomes. Some of the advantages of the coated tool bit are reduced friction, enhanced cutting efficiency, improved heat dissipation, increased resistance to wear and corrosion, and reduced adhesion to bone, tissue and other debris.