Improved methods and apparatus are provided for the production of prepreg slit tape wherein master rolls of prepreg sheet are formed which are capable of being slit, with liner attached, at high precision.

Methods are disclosed for training an installer to cut a film without damaging an underlying substrate. The methods include the steps of applying a stretchable surface-protection film to an electrically-conductive substrate provided with at least one irregularity; and cutting the surface protection film with an electrically-conductive knife which, when in contact with the electrically-conductive substrate, causes one or more notifications to occur. Also disclosed are devices that may be used in carrying out the methods of the invention.

A system and method for vibratory cutting, including in the manufacture of ceramic honeycomb bodies. The apparatus includes a transducer configured to generate vibrations with respect to an axial direction. A cutting element is configured to receive and oscillate axially in response to the vibrations. The cutting element has a blade having a width, an axial length, and a thickness. A cutting plane of the blade is defined with respect to the width and the axial length. The blade has opposing side surfaces that extend parallel to the cutting plane. The thickness extends perpendicular to the cutting plane between the opposing side surfaces. A set of fluid bearings are configured to exert fluid pressure on each of the opposing side surfaces to constrain vibrations of the blade oriented in directions transverse to the cutting plane.

In a winding device for wrapping an elongated bundled item and method for wrapping a bundled item with an adhesive tape in a winding device for wrapping an elongated bundled item with an adhesive tape, a roll for a predetermined length of adhesive tape is held in the winding head. The predetermined length is dimensioned for one portion of the item to be wrapped. A cutting of the adhesive tape on the bundled item can be avoided hereby.

A dunnage conversion machine includes a drive mechanism configured to deform a stock material into dunnage. The drive mechanism may include a roller with an outer surface having a first shape, and another roller having an outer surface with a second shape different than the first shape. The dunnage conversion machine also may include a cutting mechanism that includes an anvil having a curvilinear surface, and a cutting portion, with the anvil and the cutting portion being configured to cut the dunnage. The dunnage conversion machine also may include an inlet chute configured to feed the stock material to the dunnage conversion machine. The inlet chute may include a protrusion located within an interior channel of the inlet chute and configured to restrict larger objects, such as the fingers and hands of an operator, from moving down the interior channel.

A dunnage conversion machine includes a drive mechanism configured to deform a stock material into dunnage. The drive mechanism may include a roller with an outer surface having a first shape, and another roller having an outer surface with a second shape different than the first shape. The dunnage conversion machine also may include a cutting mechanism that includes an anvil having a curvilinear surface, and a cutting portion, with the anvil and the cutting portion being configured to cut the dunnage. The dunnage conversion machine also may include an inlet chute configured to feed the stock material to the dunnage conversion machine. The inlet chute may include a protrusion located within an interior channel of the inlet chute and configured to restrict larger objects, such as the fingers and hands of an operator, from moving down the interior channel.

A method for regulating and controlling an ultrasonic cutting speed of an outer paraboloid of a honeycomb material is provided. The method includes: regulating and controlling an ultrasonic cutting speed of an outer end face of a honeycomb blank, an ultrasonic cutting speed of an outer paraboloid of the honeycomb blank in a roughing stage, an ultrasonic cutting speed of the outer paraboloid of the honeycomb blank in a first finishing stage, an ultrasonic cutting speed of the outer paraboloid of the honeycomb blank in a second finishing stage, and an ultrasonic cutting speed of an outer peripheral face of the honeycomb blank. The ultrasonic cutting method according to the present disclosure in which the ultrasonic cutting speed V is kept constant can improve the machining quality of parts with the outer paraboloid of the honeycomb material and ensure the service life of a sharp knife.