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Standard

PERFORMANCE SPECIFICATION FOR ULTRASONICALLY WELDED WIRE TERMINATIONS

2023-07-11
CURRENT
USCAR38-2
This specification defines test methods and performance criteria for ultrasonically welded wire-to-terminal bonds as shown in Figure 1. This specification subjects parts to environmental exposures to simulate a lifetime of field exposure for a road vehicle. Exposures referenced in this specification include thermal shock, temperature humidity cycling, and mechanical stress. This specification is intended to evaluate the strength and performance of the interface between wires and the electrical terminal pad. The graphics used are specific to the linear weld type of process equipment. Validation of the terminal is a separate task (refer to a component validation test such as SAE/USCAR-2). If the weld under test (WUT) is different than described in this section or is subjected to conditions beyond what is typical of automotive use, the test sequence may not be applicable. Ensure that parts used in other conditions are validated for the actual conditions encountered.
Standard

TEST PROCEDURES FOR EVALUATING BOLT-LOAD RETENTION OF MAGNESIUM ALLOYS

2020-11-19
CURRENT
USCAR35-1
A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications.
Standard

GRAIN FLOW PATTERN FOR BOLTS, SCREWS, AND STUDS

2019-03-14
CURRENT
USCAR8-4
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener and tooling design as well as cold-forging setup. The use of tooling design simulation software is recommended and a commonly used practice that provides reliable forging predictions for superior grain flow quality.
Standard

PERFORMANCE SPECIFICATION FOR WELDED WIRE-TO-WIRE SPLICES

2018-06-14
CURRENT
USCAR45
SAE/USCAR-45 defines test methods and performance requirements for ultrasonically-welded wire-to-wire splices for automotive applications. Face-to-face, butt splice, and center strip configurations per Figure 1 can be tested. The tests defined in this specification subject samples on test to stresses that simulate a lifetime of exposure for a road vehicle. Stresses called out in this specification include thermal shock, temperature/humidity cycling and mechanical stress from different directions.
Standard

PERFORMANCE SPECIFICATION FOR ULTRASONICALLY WELDED WIRE TERMINATIONS

2016-04-05
HISTORICAL
USCAR38-1
This specification defines test methods and performance criteria for evaluating ultrasonically welded wire-to-terminal metallurgical bonds. The examples used are specific to the linear weld type of process equipment. USCAR-38 is not applicable for “Splice Welding”. The specification is applicable to wire-on-pad configurations with a typical weld shown in Figure 1. This test specification subjects parts under test to environmental exposures to simulate a lifetime of field exposure for a road vehicle. Exposures called-out in this specification include Thermal Shock, Temperature Humidity Cycling and mechanical abuse. This test specification is intended to evaluate the strength and performance of the interface between wires to an electrical terminal. Validation of the performance of the Terminal is a separate task and can be accomplished using a component validation test such as SAE/USCAR-2, which evaluates whether the entire connection system is acceptable.
Standard

Shipping Caps, Torque Caps, and Body Plugs Ergonomic Design Criteria

2015-03-30
CURRENT
USCAR43
This document describes the design and assembly force guidelines for conventional shipping caps, torque caps, and body plugs. All possible design and applications could not be anticipated in creating these guidelines. Where there are questions of adherence to this document, such as use of an “off-the-shelf” design, always consult the responsible Ergonomics Department.
Standard

Ergonomic Guidelines for Carts and Dollies

2015-03-13
CURRENT
USCAR41
This document describes the assessment methods and physical requirements associated with the manual handling of carts and dollies, specific to material handling systems. All possible designs and applications could not be anticipated in creating these guidelines. Where there are questions of adherence to this document, such as use of an “off-the shelf” design, always consult the responsible Ergonomics Department. Force guidelines were primarily developed referencing the push/pull psychophysical Snook data contained in A Guide to Manual Materials Handling (second edition) by Mital, Nicholson and Ayoub (NY: Taylor & Francis, 1997). The force guidelines accommodate 75% of female capabilities and 99% of male capabilities. Factors that were included in the established guideline include: push / pull distances, vertical hand height, horizontal hand height, frequency and wheel / castor alignment and load rating. These factors were used to develop a conservative force guideline.
Standard

Ergonomic Guidelines for Small Lot Delivery Operations

2015-03-10
CURRENT
USCAR42
This document describes the design, assessment methods and physical requirements associated with material handling systems. This would include, but not limited to manual dollies, small lot systems and kitting. All possible designs and applications could not be anticipated in creating these guidelines. Where there are questions of adherence to this document, such as use of an “off-the shelf” design, always consult the responsible Ergonomics Department.
Standard

Standard for Cigar Lighters & Power Outlets

2014-03-31
CURRENT
USCAR4-1
This standard is intended to cover cigar or cigarette lighters as well as power outlets based on the form and dimensions of the cigar lighter. This standard is a full performance specification, it includes dimensional and operational parameters as well as performance characteristics which must be met when submitting a cigar lighter assembly or power outlet assembly for production approval. This standard constitutes an acceptance specification for a surface mounted, front-loaded cigar lighter or power outlet.
Standard

Grain Flow Pattern for Bolts, Screws, and Studs

2013-12-31
HISTORICAL
USCAR8-3
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener design.
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2012-07-01
HISTORICAL
USCAR5-4
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process.
Standard

Performance Specification for Ultrasonically Welded Wire/Cable Termination

2009-12-18
HISTORICAL
USCAR38
IMPORTANT NOTICE: In any intended vehicle application, if the products covered by this specification are, or may be, subjected to conditions beyond those described in this document, they must pass special tests simulating the actual conditions to be encountered before they can be considered acceptable for actual vehicle application. Products certified by their supplier as having passed specific applicable portions of this specification are not to be used in applications where conditions may exceed those for which the product has been satisfactorily tested. The Authorized Person is the final authority as to what tests are to be performed on his or her parts and for what purpose these tests are required. He or she is also the final authority for resolving any questions related to testing to this specification and to authorizing any deviations to the equipment or procedures contained in this specification.
Standard

WIRING COMPONENT DESIGN GUIDELINES

2009-07-10
HISTORICAL
USCAR12-3
This document gives general guidelines to be used during the connector design stage. Various guidelines may not apply in all situations. Therefore, sound engineering judgment must be used in their application. Consider these guidelines as the basis for connector and wiring DFMEA’s. Items in this document are grouped by DFMEA functional requirements. Groups are as follows: A Electrical Continuity B Electrical Isolation/Sealing C Device Assembly D Harness Assembly E Vehicle Assembly F Materials G Serviceability H Environmental Requirements I High Voltage (≥ 60V) Application Requirements
Standard

AVOIDANCE OF HYDROGEN EMBRITTLEMENT OF STEEL

2008-06-01
HISTORICAL
USCAR5-3
This standard outlines the conditions that enhance the risk of hydrogen embrittlement of steel and define the relief procedures required to minimize the risk of hydrogen embrittlement. It is intended to control the process.
Standard

TEST PROCEDURES FOR EVALUATING BOLT-LOAD RETENTION OF MAGNESIUM ALLOYS

2007-10-08
HISTORICAL
USCAR35
A bolt-load retention (BLR) test is a practical test to determine the bolt load of a fastener joint with time and at given temperatures. There are three types of BLR tests described in this standard, namely general-purpose test, design-purpose test, and screening material test. A general-purpose BLR test may be used for screening materials, while a design-purpose BLR test is usually used to verify the BLR behavior of a specific joint. The screening material test is an example of the general-purpose test for typical automotive applications.
Standard

TEST FOR EVALUATING THE TORQUE-TENSION RELATIONSHIP OF BOTH EXTERNAL AND INTERNAL METRIC THREADED FASTENERS

2007-04-05
HISTORICAL
USCAR10-2
This standard provides a test method for determining the torque-tension relationship of both external and internal metric threaded fasteners for the purpose of measuring the frictional characteristics of the threaded fasteners. The results obtained by this test are relevant to the test conditions only and should not be utilized for specific applications.
Standard

GRAIN FLOW PATTERN FOR BOLTS, SCREWS, AND STUDS

2007-03-13
HISTORICAL
USCAR8-2
This specification covers the grain flow pattern requirements in headed bolts, screws, and studs. The heading practice in the manufacture of the bolt, screw, or stud sets the grain flow pattern, but it is also greatly influenced by the fastener design.
Standard

TEST FOR EVALUATING THE TORQUE-TENSION RELATIONSHIP OF BOTH EXTERNAL AND INTERNAL METRIC THREADED FASTENERS

2004-05-14
HISTORICAL
USCAR10-1
This standard provides a test method for determining the torque-tension relationship of both external and internal metric threaded fasteners for the purpose of measuring the frictional characteristics of the threaded fasteners. The results obtained by this test are relevant to the test conditions only and should not be utilized for specific applications.
Standard

COAXIAL CABLE CONNECTOR INTERFACE – SQUARE OUTER CONDUCTOR

2003-03-10
HISTORICAL
USCAR19-1
This radio frequency (RF) connector interface specification is suited for unsealed automobile applications up to 2 GHz. Dimensional requirements are specified in this document to ensure interchangeability. This RF connector interface specification is intended for in-line, board mount, device mount, straight or angled applications. Performance requirements are specified in SAE/USCAR-2, and in SAE/USCAR-17.
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