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US 6,743,312 B2Granted
Method of fabricating a ball protective mask
AssigneeYu Hsun Enterprise Co., Ltd.
InventorJung-Tso Shih
Life of this patent
Estimating the term…
Abstract
A method of fabricating ball protective mask includes (1) aluminum extrusion: the aluminum extruded structure has a suitably shaped outer ring frame and densely packed hollow holes so that the cross section thereof forms a grid-like structure, two sides thereof being provided with lugs; (2) slicing; (3) deburring by punching; (4) punch forming: the slice is punched to form a curved mask to accomplish an inchoate form of the mask; (5) subjecting the mask to heat treatment to obtain a product with satisfactory surface hardness.
Claims3
A method of fabricating a ball protective mask, comprising:
- (1) extruding an aluminum material to form a substrate, which has an outer ring frame of a suitable shape and an interior provided with densely packed hollow holes so that the cross section thereof forms a grid-like structure and both sides thereof are provided with projecting lugs;
- (2) slicing:
- the extruded aluminum extracted substrate is cut into slices of suitable thickness,
- (3) deburring by punching:
- the suitably thick slices form angles or burrs at the cutting edges of the outer ring frame and the hollow holes, the angle being inverted by punching to thereby remove the burrs at the cutting edges;
- (4) punch forming (D):
- the slice is punched into shape to form a curved mask, thereby accomplishing an inchoate form of the mask,
- (5) subjecting the mask to heat treatment to obtain a product with satisfactory surface hardness.
5 more elements
Dependencies are inferred from the claim text.