76015

Name

Identifier

Engineering Standard Number

EngineeringStandards

WELDED

MATERIALS SPECIFICATIONS(JOINED)

76015

n or

CES

rials

ction,

nless

1. Scope

This specification applies to tip welding for engine exhaust by projection, resistance, frictioinertia.

2. Applicable Documents

Applicable documents listed below may be obtained from the respective organization listed in10054.

a. ASTM E18, Rockwell Hardness and Rockwell Superficial Hardness of Metallic Mateb. CES 10054, Standards Organization Addressesc. CES 99020, Materials Specification Standards

3. Definitions

There are no unique definitions in this specification.

4. Specification

4.1. Significance and Use

4.1.1. This specification applies to two piece engine exhaust valves welded by projeresistance, friction or inertia.

4.1.2. Acceptance criteria are statistically significant as described in CES 99020 uspecifically excepted.

4.2. Chemical Composition

There are no chemical requirements in this specification.

4.3. Physical Properties

There are no composition requirements for this specification.

Current Release Number Std. Revision Level of 3002932987-000

PROPRIETARY : Information contained within this document is not to be disclosed to thirdparties, or used for any purpose other than the manufacture for Cummins or its’ subsidiaries.

Name

Identifier



WELDED


76015

hen

A1.

ters)

4.4. Mechanical Properties

4.4.1. Hardness of heat affected zone within 0.25 inch of weld shall be 28 HRC minimum wevaluated in accordance with ASTM E18.

4.4.2. Shear strength of weld shall be determined as indicated in Appendix A, FigureForce to shear weld shall be as specified on the engineering drawing.

4.5. Structure

Weld gap measured in the longitudinal direction shall be 0.012 inches (0.30 millimemaximum.

4.6. Additional Requirements

There are no additional requirements of this specification.



Name

Identifier



WELDED


76015

Appendix A

Figure A1: Weld Shear Strength Test Schematic

Weld Interface

Force

Support

