Chemically sharpened blades

US10500748B2 · kind B2 · utility

Assignee

• Hutchinson Technology Incorporated · US

Inventors

• Paul V. Pesavento · Hutchinson, US
• Peter F. Ladwig · Hutchinson, US
• Michael W. Davis · Elburn, US
• John A. Theget · Hutchinson, US
• Kurt C. Swanson · Hutchinson, US
• Joel B. Michaletz · Litchfield, US
• Philip W. Anderson · Dassel, US
• Timothy A. McDaniel · Hutchinson, US

Key dates

• Filing date: Mar 1, 2016
• Grant date: Dec 10, 2019
• Expiry date: Mar 1, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B26D2001/0053
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A chemically etched cutting tool includes a metal base having a first side and a second side, and a chemically etched blade on at least one side of the metal base, the chemically etched blade forming a cutting edge at the intersection of the first side of the chemically etched blade and the second side of the chemically etched blade. The first side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions. The second side of the chemically etched blade includes one or more concave portions and one or more convex portions with at least one inflection point between the concave portions and one or more convex portions.