THIN PLATE BURRING METHOD AND THIN PLATE FEMALE SCREW-FORMING METHOD

PROBLEM TO BE SOLVED: To provide a thin plate burring method that can increase the amount of projection of an annular portion by burring process even if a thinned plate-like workpiece is used.SOLUTION: The thin plate burring method includes: a first step for forming a thin portion 11C thinner than a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KURIHARA HIROKAZU, MAEDA DAIKI
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a thin plate burring method that can increase the amount of projection of an annular portion by burring process even if a thinned plate-like workpiece is used.SOLUTION: The thin plate burring method includes: a first step for forming a thin portion 11C thinner than an original thickness at a target portion of a plate-like workpiece 11 by applying crushing process to the target portion; a second step for forming a circular through-hole 11D in the thin portion 11C by punching process; and a third step for forming an annular portion 11E rising from a surface of the workpiece 11 by applying projection process with burring process around the through-hole 11D formed in the thin portion 11C.