Title:
METHOD FOR DRILLING A HOLE IN A MATERIAL OF A LOW MELTING POINT
Document Type and Number:
Japanese Patent JP2015030069
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a condition for drilling a hole of an excellent quality in a material having a low melting point like a foamed PET material.SOLUTION: In work for drilling a material of a melting point of 300°C or lower by using a drill having a diameter of 0.2 mm to 0.4 mm φ, a drill may have a point angle of 130 to 140°, a twist angle of 40° or more, core thickness of 0.04 to 0.06 mm, a groove width ratio of 3, a web taper of 1.5 or less, the internal diameter of a point bush of 1.2 mm φ or less, a lubricant-coated aluminum plate as a finish plate, and a cutting speed of 3.5 m/min or higher.
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Inventors:
TOKINAGA KATSUNORI
HORITA KYOHEI
HORITA KYOHEI
Application Number:
JP2013162392A
Publication Date:
February 16, 2015
Filing Date:
August 05, 2013
Export Citation:
Assignee:
VIA MECHANICS LTD
International Classes:
B23B35/00; B23B51/00
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