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Mechanical & Fluid Systems

2022 Honda Civic Hatchback Enjoys Premium Assembly, Weight-Cutting Measures

As a veteran manufacturing engineer, Jill Fuel was an ideal choice for the project leader for the production launch of Honda’s 2022 Civic Hatchback at Honda's...

Articles
Aerospace

The Science of Joining Dissimilar Metals in Aerospace Manufacturing

With the industry’s traditional focus on welding and brazing, there has been minimal formal education on diffusion bonding.

Briefs
Electronics & Computers

Novel Whisker Mitigating Composite Conformal Coat Assessment

DoD electronics have an increased failure risk due to tin whisker short circuits, unless properly mitigated by design.

Articles
RF & Microwave Electronics

A Comprehensive Way to Use Bonding to Improve RF Performance of Low Noise Amplifiers

Is RF engineering a form of black magic? Learn about the challenges in developing a low noise amplifier (LNA) for the aerospace market.

Articles
Manufacturing & Prototyping

Tips for Choosing CBN Grinding Wheels

Learn about the most common bond systems for CBN wheels: resin, vitrified, and electroplated matrixes.

Briefs
Materials

Designing Sensory and Adaptive Composite Materials

Newly developed computational approaches aid in the design of composites that exhibit remarkable abilities to both sense external cues and adapt to these cues in controllable, "programmable" ways.

News
Materials

ALLEGRO Project Seeks to Boost Lightweight-Materials Durability

First define the lightweight material that best complements electric vehicle (EV) and automated-vehicle (AV) range efficiency – then optimize it for increased durability...

Articles
Test & Measurement

Optimizing Plasma Treatments to RESOLVE Challenging Adhesion Issues

The process of determining the ideal plasma treatment that will resolve a challenging bonding or adhesion issue is an exact science, often the domain of chemists and...

Briefs
Defense

Evaluation of Peel Ply Surface Preparation of Composite Surfaces for Secondary Bonding

Lightweight composite structures offer significant long-term cost-saving opportunities for the U.S. Army as replacements for traditional metal structures....

Briefs
Test & Measurement

Hydraulic Testing of Polymer Matrix Composite 102mm Tube Section

The objective of this research was to hydraulically pressurize the internal diameter of one 102mm Polymer Matrix Composite (PMC) over-wrapped cylinder up to 25,000 pounds per...

Articles
Electronics & Computers

Designing With MIL-STD-1553B Components

The interconnected backbone of a MIL-STD-1553B vehicle depends on the electrical and mechanical reliability of the components, the design, and the installation. With the vast array of MIL-STD-1553B...

Articles
Sensors/Data Acquisition

New Products & Services: December 2017 Aerospace Manufacturing & Fabrication

Metric-Sized Metal Shapes

Parker Steel Company (Maumee, OH) offers metric-sized metals suitable for applications where presized metric parts are needed....

Briefs
Aerospace

High Temperature Graphene-Peek Adhesive

Joining of composites can be a challenging issue. If adhesives are used, the joints are permanent and cannot be undone. If they need to be undone, inserts are often used and these inserts increase cost...

Articles
RF & Microwave Electronics

The Ins and Outs of Spaceflight Passive Components and Assemblies

RF and microwave components deployed in spaceflight applications can experience hundreds of degrees of temperature variation, massive amounts of radiation, and can be expected...

Briefs
Manufacturing & Prototyping

Multifunctional Shear Pressed CNT Sheets for Strain Sensing and Composite Joint Toughening

The main goal of this work is to obtain a scientific understanding of the possibilities provided by, and the behavioral features of, a novel type high...

Briefs
Aerospace

Designing and Fabricating a Multiple-Decade Battery

There is a great need for energy sources that can power unattended sensors for more than a decade. Unattended sensors can be located in harsh and remote locations that are often dangerous...

Briefs
Aerospace

Development of Hydrophobic Coatings for Water-Repellent Surfaces Using Hybrid Methodology

Coatings that impart hydrophobic properties are of considerable interest. For applications such as aircraft windows, optical components, protective...

Articles
Electronics & Computers

Designing Rugged, Standards-Based Embedded Solutions

It can be argued that small form factor design trends are paradoxical. As form factor size decreases, functionality requirements increase; as processing power requirements heighten, lower...

Articles
Electronics & Computers

Choosing a Capacitor for Use as a Switch-Mode Power Supply Filter

Input filter caps need to be able to supply a quick burst of energy and to suppress noise generated in the switch circuit. Important considerations for the input filter cap...

Articles
Sensors/Data Acquisition

Thermal Management Techniques for Military Embedded Computers

As military programs continue to place an ever growing reliance on embedded computer systems, developments in rugged computer design must continue to advance to keep pace with...

Briefs
Electronics & Computers

Dense Transducer Array

A dense transducer array is an acoustic transducer with relatively high operational bandwidth. It includes a cable harness component that provides and organizes various conductors within piezocomposite substrates to form transducer arrays with minimum impact on electroacoustic performance. Several underwater sonar...

Briefs
Materials

Mechanical Response of an Al-PTFE Composite to Uniaxial Compression Over a Range of Strain Rates and Temperatures

Reactive materials can be loosely categorized as composites of inert solid materials which, when subjected to a violent...

Briefs
Electronics & Computers

AC Coupled Interconnect for Low-Power Spaceborne Electronics

An AC coupled interconnect (ACCI) has been developed that could be used to create multiple solutions to contactless chip-to-chip communications. Assembly and testing of a 0.18 um...

Briefs
Manufacturing & Prototyping

Patterning of Polycrystalline Bi2Te3 Thin Films on Silicon

Experiments in patterning of thin films of polycrystalline bismuth telluride (Bi2Te3) on silicon substrates have been performed. Bi2Te3 is...

Briefs
Physical Sciences

Time-Coding of Asynchronous Data Transmissions

A method for providing a time code for multiple streams of simultaneously received data has been developed in order to allow reconstruction of the data after asynchronous transfer. It is often...

Briefs
Materials

Aligned MWCNTs as Thermal Conductors in Adhesive Joints

A developmental method of increasing the thermal conductance of an adhesive joint in a composite-material structure (or between a composite-material structure and another structure)...

Briefs
Medical

Update on Implantable Sensors for Metabolic Monitoring

Progress has been made in a continuing effort to develop surgically implantable, biocompatible electrochemical- sensor arrays for continuous measurement of concentrations of analytes...

Briefs
Electronics & Computers

Microscale Electrical Contacts for Self-Assembly

An experimental study of self-assembly processes in which small, heterogeneous components become spontaneously aligned with each other and bonded through soldering of mating electrical...

Briefs
Manufacturing & Prototyping

Experiments in Vacuum Brazing of Titanium

An experimental study of vacuum brazing of titanium and of the effects of changes in brazing alloys and brazing process conditions has been performed. [As used here, “titanium” signifies both...