COMPONENT TO BE INSERTED THROUGH THE SURFACE OF A WORKPIECE

摘要

A component for use with a rotary tool is designed to be inserted through a surface of a workpiece made of a first material showing friction-induced plasticity for attachment to the workpiece. The component has a head portion having a base and a working end being threaded at its outer surface, and further has an insert portion having a penetrating end and extending along an insertion axis. At least an outer surface of the insert portion is made of a second material harder than the first material. The insert portion is provided with a threaded bore closed at its penetrating end and extending along the insertion axis to initially receive the threaded working end. The head portion base is adapted to be secured to the rotary tool for rotation in a first direction while applying an axial force of a sufficient magnitude onto the head portion base to produce substantially full insertion of the insert portion along the insertion axis by plasticizing the first material through friction and to produce attachment after a sufficient setting time.

主权项

1. A component for use with a rotary tool and to be inserted through a surface of a workpiece made of a first material showing friction-induced plasticity for attachment to the workpiece, said component comprising:
a head portion having a base and a working end being threaded at its outer surface; and an insert portion having a penetrating end and extending along an insertion axis of said component, at least an outer surface of said insert portion being made of a second material adapted to be harder than said first material, said insert portion being provided with a threaded bore closed at said penetrating end and extending along said axis to initially receive said threaded working end; wherein said head portion base is adapted to be secured to said rotary tool for rotation in a first direction while applying an axial force of a sufficient magnitude onto the head portion base to produce substantially full insertion of the insert portion along said axis by plasticizing the first material through friction and to produce said attachment after a sufficient setting time.