Notched Thread Screw Structure for Fast Chip Removal

The thread convolutions are segmented by introducing notches that divide each thread convolution into multiple cutting units. This segmentation reduces the continuous contact area between the thread and workpiece, thereby reducing screwing resistance while maintaining structural integrity through the distributed cutting units.

The notches are strategically positioned at specific locations on the thread convolutions to create localized cutting edges. This local modification allows the thread to have different properties at different locations: sharp cutting edges at the notches for reduced resistance, and continuous thread structure elsewhere for maintained strength.

The thread convolutions are divided into multiple cutting units by notches, creating multiple discrete cutting points along each thread. This segmentation enables more effective fiber severing as the multiple cutting units can cut fibers at different positions simultaneously, improving cutting efficiency while the overall thread structure maintains strength.

The introduction of notches changes the geometric parameters of the thread convolutions by creating sharp cutting edges at the notch locations. This parameter change transforms the thread from a continuous contact surface to a series of discrete cutting points, significantly improving fiber severing effectiveness.

The notches segment the thread convolutions into cutting units, and these notches simultaneously form channels that facilitate chip removal. The segmentation creates natural chip discharge paths without requiring additional complex structures, maintaining relative simplicity while improving chip removal efficiency.

The notches serve multiple functions: they create cutting edges for fiber severing, form channels for chip removal, and reduce contact area for lowering screwing resistance. This multi-functionality improves chip removal efficiency without adding separate dedicated structures, maintaining design simplicity.

The notches segment the continuous thread contact area into discrete cutting units, creating gaps between the units. These gaps provide channels and spaces for chip accommodation and removal, while the overall thread engagement area is maintained through the distributed cutting units along the thread length.

The notches create localized gaps at specific positions on the thread convolutions, providing chip accommodation spaces at these locations while maintaining continuous thread engagement in other areas. This local modification balances chip space requirements with engagement area requirements.