Unlock instant, AI-driven research and patent intelligence for your innovation.

Drilling bit

A technology for drill bit and drill bit diameter, which is applied in the direction of repairing drills, twist drills, drilling tool accessories, etc., can solve problems such as increasing production costs

Inactive Publication Date: 2005-02-09
CHOON NANG ELECTRICAL APPLIANC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this point will inevitably require the drill bit to have a larger diameter so that the drill core is sufficiently thick enough to achieve the corresponding strength, so additional materials must be required when manufacturing the drill bit and the production cost will be increased accordingly.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drilling bit
  • Drilling bit
  • Drilling bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Firstly, FIGS. 1 to 6 show a drill bit 100 according to a first embodiment of the invention, which is capable of axial cutting as well as lateral cutting. Drill bit 100 is suitable for use at a normal speed of approximately 30,000 rpm and for use on drywall, wood such as laminate, including acrylic, acrylonitrile-butylene Diene-styrene terpolymer and polyvinyl chloride and other plastic plates, and aluminum plates for cutting.

[0027] The drill bit 100 has a generally cylindrical elongated body 102 constructed of high speed cutting tool steel having an outer diameter or bit diameter of substantially 3.5 -0.10 +0 mm and an overall length of approximately 70mm. The front section of the elongated body 102 is a helical section forming the cutting section 110 and the rear section immediately following the front section is a drill rod 120 which is omitted from the drawing. The calculated length of the cutting section as described below is substantially 41.04 mm, the remai...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The drilling bit capable of cutting in both axial direction and side direction is one slender cylinder, which includes one front drilling end for axial cutting, one side cutting section extending from the drilling end, and bit handle behind the side cutting section. The side cutting section includes a pair of opposite spiral grooves at the angle of 13-17 deg and with sharpened edge around the drilling center. The drilling center has diameter proportional directly to the bit diameter and cutting edge length is also proportional directly to the bit diameter.

Description

technical field [0001] The invention relates to a drill bit which can realize axial and transverse cutting. Background technique [0002] There are known certain types of drills capable of axial cutting or drilling, similar to conventional drill bits, and of transverse or lateral cutting, similar to milling cutter heads. To achieve smooth side cutting, the cutting edge must be inclined at a small angle relative to the bit axis. However, this necessarily requires that the drill bit has a relatively large diameter in order to make the drill core sufficiently thick enough to achieve a corresponding strength, so that additional material must be required during the manufacture of the drill bit and consequently increased production costs. [0003] The present invention aims at proposing an improved drill bit with optimum cutting performance and low production costs which overcomes or at least alleviates the above-mentioned problems. Contents of the invention [0004] According...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23B51/02B23C5/10
CPCB23C5/10B23B51/02Y10T408/9097Y10T408/352Y10T407/1966Y10T407/1948
Inventor 吕达年何国光
Owner CHOON NANG ELECTRICAL APPLIANC