Advanced Manufacturing


Titanium Alloy Preforms from Plasma Arc Directed Energy Deposition Additive Manufacturing on Substrate, Ti-6Al-4V, Stress Relieved

This specification covers preforms fabricated up through 5.5 inches (140 mm) inclusive in deposition width thickness (see 8.2.5) using a Plasma Arc Directed Energy Deposition (PA-DED) additive manufacturing process on a Ti-6Al-4V substrate that are subjected to post-deposition stress relief heat treatment. This is a wire fed additive manufacturing process. If required by the CEO, preforms may require subsequent machining to meet requirements for their intended final part application.

Automotive Gear Lubricant Viscosity Classification

The SAE J306 Standard defines the limits for a classification of automotive gear lubricants in rheological terms. This standard is intended for use by equipment manufacturers in defining and recommending automotive gear, axle, and manual transmission lubricants. In 1998 and 2005, SAE created new viscosity grades in SAE J306 to better balance fuel economy and durability.

Technical Papers

Friction Coefficient Evaluation on Aluminum Alloy Sheet Metal Using Digital Image Correlation

The coefficient of friction between surfaces is an important criterion for predicting metal behavior during sheet metal stamping processes. This research introduces an innovative technique to find the coefficient of friction on a lubricated aluminum sheet metal surface by simulating the industrial manufacturing stamping process while using 3D digital image correlation (3D-DIC) to track the deformation.

Improve Frame Assembly Flexibility with Low Investment

Commercial vehicles are being developed for long decades in Brazil creating a deep background on manufacturing process. With the current scenario a variety of different vehicles specifications (weight capacity, load distribution, torque, size, etc.) are being required by the market.

Journal Articles

Fatigue Life Simulation on Fiber Reinforced Composites

The need of weight reduction for fuel reduction and CO₂ regulations enforces the use of light-weight materials for structural parts also. The importance of reinforced composites will grow in this area. While the structural behavior and the simulation up to high strain-rate processes for those materials have been in the focus of investigation for many years, nowadays the simulation of high cycle fatigue behavior is getting important as well.