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Technical Paper

Application of Desirability Approach to Determine Optimal Turning Parameters

2024-02-20
2024-01-5022
Aluminum alloys are employed in agricultural equipment, aerospace sectors, medical instruments, machinery, automobiles, etc. due to their physical and mechanical characteristics. The geometrical shape and size of the parts are modified in turning operation by using a single-point cutting tool. A356 aluminum alloy is widely used in various engineering sectors, hence there is a necessity to produce A-356 components with quality. The inappropriate cutting parameters used in turning operation entail high production costs and reduce tool life. Box–Behnken design (BBD) based on response surface methodology (RSM) was used to design the experiments such that the experiment trials were conducted by varying cutting parameters like N-spindle speed (rpm), f-feed rate (mm/rev), and d-depth of cut (mm). The multi-objective responses, such as surface roughness (SR) and metal removal rate (MRR) were analyzed with the desirability method.
Training / Education

DO-326A and ED-202A An Introduction to the New and Mandatory Aviation Cyber-Security Essentials

2024-07-29
This course will introduce participants to industry best practices for real-world aviation cyber-security risk-assessment, development & assurance. Participants will learn the information necessary to help minimize DO-326/ED-202-set compliance risks and costs, while also optimizing cyber-security levels for the development, deployment and in-service phases Topics such as aircraft security aspects of safety, systems-approach to security, security planning, the airworthiness security process, and security effectiveness assurance will be covered.
Article

Ensuring Aircraft Safety by Optimizing Ice Protection Systems

2023-01-13
Aircraft that carry crew and/or passengers must pass one or more icing-related standards for certification. Ice protection systems and components play a crucial role in safe aircraft operation. Such systems are usually installed in wings, nacelle intakes, pitot tubes, stabilizers, and propeller and helicopter rotor blades. These safety-critical systems follow a certification requirement per Code of Federal Regulations (CFR) part 23, 25, 27, 29, and others, for the various types of aircraft and rotorcraft as well as engines.
Technical Paper

Evaluation of Coated and Uncoated Inserts of the Cutting Tool for Improved Machinability of Inconel 825 Alloy

2024-02-23
2024-01-5026
The limitations of commonly used materials such as steel in withstanding high temperatures led to exploring alternative alloys. For instance, Inconel 825 is a nickel-based alloy known for its exceptional corrosion resistance. Thus, the Inconel 825 is used in various applications, including aerospace, marine propulsion, and missiles. Though it has many advantages, machining this alloy at high temperatures could be challenging due to its inadequate heat conductivity, increased strain hardening propensity, and extreme dynamic shear strength. The resultant hardened chips generated during high-speed machining exhibit elevated temperatures, leading to tool wear and surface damage, extending into the subsurface. This work investigated the influence of varying process settings on the machinability of Inconel 825 metal, using both uncoated and coated tools.
Training / Education

FAA/EASA Certification, Methods of Compliance for 29.801 Ditching

Certifying an aircraft, part or appliance can be a challenge.  The FAA/EASA procedures can be frustrating and a maze of rules, policy and guidance. Understanding the process and procedures can provide you with a competitive edge and reduce your time obtaining a Certification approval. This course provides an overview of the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA) policies, guidelines and requirements leading to Type and Supplemental Type airworthiness approvals. This course has a focus on 29.801 Ditching and EASA 29.802 Emergency Flotation.
Training / Education

FAA/EASA Certification, Methods of Compliance for 29.865 External Loads

Certifying an aircraft, part or appliance can be challenge. The FAA/EASA procedures can be frustrating and a maze of rules, policy and guidance. Understanding the process and procedures can provide you with a competitive edge and reduce your time obtaining a Certification approval. This course provides an overview of the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA) policies, guidelines and requirements leading to Type and Supplemental Type airworthiness approvals. This course has a focus on 29.865 External loads to include hoists, belly-mounted external structure and cargo hook loads.
Standard

NATIONAL AEROSPACE AND DEFENSE CONTRACTORS ACCREDITATION PROGRAM REQUIREMENTS FOR NONCONVENTIONAL MACHINING

2002-02-01
HISTORICAL
AS7116
This Aerospace Standard (AS) establishes the requirements for suppliers of Nonconventional Machining Services to be accredited by the National Aerospace and Defense Contractors Accreditation Program (NADCAP). NADCAP accreditation is granted in accordance with SAE AS7003 after demonstration of compliance with the requirements herein. The requirements may be supplemented by additional requirements specified by the NADCAP Nonconventional Machining and Surface Enhancement (NMSE) Task Group. Using the corresponding Audit Criteria (PRI AC7116) will ensure that accredited Nonconventional Machining suppliers meet all of the requirements in this standard and all applicable supplementary standards. The purpose of this audit program is to assess a supplier's ability to consistently provide a product or service that conforms to the technical specifications and customer requirements.
Training / Education

Navigating Requirements for International Certification of Aviation Products

This course describes the basic elements of the process for achieving a successful aircraft certification globally once certification by the State of Design has been accomplished. The regulatory framework established under ICAO is presented with discussion of how major countries around the world comply with the ICAO Standards and Recommended Practices (SARPs). The uncertainty of how each country performs validation is a challenge. This course identifies common validation practices and key bilateral agreements which facilitate acceptance of aviation products from one country to another.
Article

Quality management experts provide guidance on AS9100 standard

2021-11-04
Quality management professionals across the global aerospace and defense community are convening for one hour – Wednesday, October 27th, starting at 10 am Pacific Daylight Time (PDT) – to discuss the AS9100 international standard. Register to take part in the free AeroTech webinar, hosted by SAE International and Tektronix, designed to help manufacturers, contractors, and subcontractors throughout the global aviation, space, and defense supply chain keep pace with and meet the requirements of AS9100 international quality management system standard.
Standard

Requirements for Aviation, Space, and Defense Auditor Training, Development, Competence, and Authentication

2020-11-11
CURRENT
AS9104/3A
This document defines the minimum requirements for auditors, CBs, Auditor Authentication Bodies (AABs), Training Provider Approval Bodies (TPABs), and Training Providers (TPs) who participate in the IAQG Industry Controlled Other Party (ICOP) scheme. The requirements in this standard supplement those defined within the 9104/1, 9104/2, ISO/IEC 17021-1, and ISO/IEC 17021-3 standards. Data protection for the parties subject to this document and other relevant requirements of the ICOP scheme are managed via bi-lateral contracts between the joint controllers of the data.
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