Title

Theoretical Formability. Volume II. Application

Description

The "cut-and-try" method of determining sheet metal formability has long been the standard practice in the aircraft industry. This two-volume report presents methods of determining formability analytically for the twelve most common processes of forming sheet metal. This method is based on utilization of a material's mechanical properties to predict formability.

The first volume on development gives the procedure used to arrive at the objective of predicting formability. First, basic limit equations are developed relating geometry of the parts to the material properties. These equations are used to determine the shape of the limit graphs and to give indices relating formability to the material. Then, experimental parts are formed to position the theoretically shaped curves with the aid of the formability indices.

The second volume on application is presented in handbook form giving design and manufacturing information for nineteen materials in the program. These materials covered some of the most currently used alloys: (1) magnesium, (2) aluminum, (3) titanium, (4) stainless steel, (5) tool steel, (6) nickel and cobalt base and (7) refractory metals. Graphs, equations, and design tables are presented for each process, statistically proven with experimental work comprising a total of approximately twenty-one-thousand formed parts.

Date

1961

Extent

482

Laboratory

Directorate of Materials and Processes

Identifier

ADA286695

Report Number

ASD TR 61-191 (II)

Contract

AF 33(616)-6951

DoD Project

7381

Distribution Conflict

No

Access Rights

OTS

Photo Quality

Not Needed

Distribution Classification

1

DTIC Record Exists

Yes

Report Availability

Full text available

Creator

Wood, W. W.

Date Issued

1961-08

Abstract

The "cut-and-try" method of determining sheet metal formability has long been the standard practice in the aircraft industry. This two-volume report presents methods of determining formability analytically for the twelve most common processes of forming sheet metal. This method is based on utilization of a material's mechanical properties to predict formability.

The first volume on development gives the procedure used to arrive at the objective of predicting formability. First, basic limit equations are developed relating geometry of the parts to the material properties. These equations are used to determine the shape of the limit graphs and to give indices relating formability to the material. Then, experimental parts are formed to position the theoretically shaped curves with the aid of the formability indices.

The second volume on application is presented in handbook form giving design and manufacturing information for nineteen materials in the program. These materials covered some of the most currently used alloys: (1) magnesium, (2) aluminum, (3) titanium, (4) stainless steel, (5) tool steel, (6) nickel and cobalt base and (7) refractory metals. Graphs, equations, and design tables are presented for each process, statistically proven with experimental work comprising a total of approximately twenty-one-thousand formed parts.

Provenance

IIT

Type

report

Subject

Rolling (Metallurgy)

Sheet Metal

Stretch Forming

Aircraft Industry

Manufacturing

Aluminum Alloys

Graphs

Shape

Production Engineering

Magnesium Alloys

Metal Forming Brakes

Metal Spinning

Pressing (Forming)

Drawing (Forming)

Flanges

Standards

Geometry

Refractory Metals

Utilization

Titanium Alloys

Publisher

Wright-Patterson Air Force Base, OH : Aeronautical Systems Division, Air Force Systems Command, United States Air Force

Format

xxxi, 443 pages : ill. ; 28 cm.

Corporate Author

Manufacturing Research and Developments, Vought Aeronautics, a division of Chance Vought Corporation

Index Abstract

Contrails and DTIC truncated

Date Modified

Scanned by request submittted 2023-12-20 by University of Wichita (University - Domestic)