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Standard

Proper use of Tooling Compensation

2018-01-05
WIP
AIR6972
To inform users on proper use, procedures and common errors when using electronic compensation for tooling on horizontal and vertical balancing machines
Standard

End Drive Adapters - Balancing Error Analysis

2017-10-24
WIP
AIR6967
This SAE Aerospace Information Report is to supplement content from ARP4163 pertaining to error analysis on the use of multiple drive adapter applications, on both vertical and horizontal balance machines. This new Aerospace Information Report will serve as a practical resource that offers guidance to the Machine Operator and Process Engineer.
Standard

Conducting Measurement System Analysis for Balancing Tasks

2017-10-18
WIP
AIR6966
The primary goal of this new Aerospace Information Report is to provide guidelines to conduct effective Gage R&R studies for balancing tasks. This new Aerospace information report will inform process planners and machine operators how to properly conduct a Gage R&R study and interpret results. The contents of the report are: introduction, step by step guidelines to conduct Gage R&R study, data analysis options, and result interpretation.
Standard

Balance Data Vector Math - Discussion and Usage

2017-10-16
WIP
AIR6964
Provide guidance on how balance machine vector data is captured and reported. Provide an understanding of how to transform balance machine vector data to alternate locations. Provide guidance on how vector imbalances may be used to evaluate and diagnose balance process performance.
Standard

Balance machine bode plot interpreation

2017-10-16
WIP
AIR6965
Provide a fundamental understanding of reason for completing a bode plot on the balance machine. Discuss potential causes of a resonance within the balance process. Discuss the basis for the WN^2 requirement and how it pertains to the bode plot. Provide guidelines for the usage and interpretation of the bode plot.
Standard

Balancing Machine Proving Rotors

2017-03-17
CURRENT
ARP4162B
This SAE Aerospace Recommended Practice (ARP) specifies a series of balancing machine proving rotors and related test weights as directly required for the evaluation of gas turbine rotor balancing machines.
Standard

Moment Weighing Systems – Single-Axis for Gas Turbine Blade Moment Weight Measurement

2016-11-28
WIP
ARP6914
The scope of these standards will relate to single-axis moment scales only. Topics covered include dimensional characteristics of single-axis moment scale interfaces, general tooling requirements, scale and tooling accuracy, and display instrument accuracy requirements. Additionally, general guidelines for qualification of equipment and tooling are included, as are general requirements for single-axis blade distribution software.
Standard

Balancing Systems – Isolating Repeatability Issues in Challenging Balancing Applications

2016-11-09
WIP
AIR6911
The goal of this new Aerospace Information Report is to supplement the content of AS6327™ and provide a reference document for the new Aerospace Standard. This new Aerospace Information Report will serve as a practical resource that offers guidance to the machine operator and Process Engineer for isolating the source(s) of non-repeatability in measured unbalance data. The content will include: • Machine Capability to achieve the specified unbalance tolerances and repeat within those tolerances • Tooling Capability to repeat within the specified unbalance tolerances • Rotor characteristics that may preclude repeating within the required unbalance tolerances.
Standard

Balancing Machines: Tooling Design Criteria

2016-10-05
WIP
ARP4163A
This document establishes general design criteria, tolerances, and limits of application for tooling, fixtures and accessories for mounting and driving gas turbine engine rotors on horizontal and vertical balancing machines. For your own safety, while using balancing tooling, regard the safety instructions of the individual supplier.
Standard

Balancing Machines - Tooling Management, Audit, and Control

2015-12-21
WIP
ARP6898
The goal of this new document is to provide criteria for managing, auditing, and controlling the use of rotating balancing tooling and associated support tools. A variety of subjects will be addressed including serialization and marking requirements, critical inspection criteria, performance tracking through tooling compensation trend analysis, handling of gage standards (rotor simulators, master blades, dummy blades, etc.), recommendations for periodic and preventive maintenance intervals, test recommendations to evaluate rotating tooling performance, requirements for traceable measures (such as torques, runouts, eccentricity, etc.), repeatability characterization, and criteria for return to service.
Standard

Methods and Criteria for the Balancing of Gas Turbine Rigid Rotors

2015-06-25
WIP
AS6327
This document establishes process parameters for gas turbine rotor balancing. Adherence to the recommendations made herein will facilitate attainment of the usually high degree of accuracy and precision required for jet engine rotor balance.
Standard

Balancing Machines, Dynamic, Ball Type Slave Bearings for Rotor Support

2015-05-07
WIP
ARP1202B
This Aerospace Recommenced Practice (ARP) defines a series of ball bearings which are specifically designed to support the rotor in a dynamic balancing machine. By establishing certain bearing sizes the number of required balancing machine support adapters will be reduced. The intent is that each size bearing identified by its outside diameter and width will be capable of accommodating any bore diameter within the specified range of that size. This ARP specifies both the nominal dimensions and the tolerances for a series of ball bearings with semifinished inside diameters which are suitable for supporting gas turbine rotating components in dynamic balancing machines.
Standard

Balancing Machines - Description and Evaluation Horizontal, Two-Plane, Soft-Bearing Type for Gas Turbine Rotors

2012-12-17
CURRENT
ARP587C
The specific performance requirements preceding each test in Section 9 have been written to define certain characteristics of the machine. Conformance with the tests constitutes what is considered minimum proof that the machine will meet these requirements. The test procedures will not prove conformance with all requirements over the full range of all variables, neither will they measure nor define the exact reasons for nonconformance in a given test. Failure of a machine to conform may be due to shortcomings in specific components or to more general reasons such as lack of ruggedness, improper leveling or anchoring to the floor, etc.
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