Understanding how powder can influence additive manufacturing processing and final material properties
Powder specifications are vital in ensuring stable and reproducible processing. So it is clear that the ability to test a powder against the specification and ensure it is being met is vital. In this webinar, UL and LPW experts will discuss how powder can influence the Additive Manufacturing processing and final material properties of the built parts, and what properties influence powder behaviour.
We will introduce the techniques used to measure the key powder properties, and discuss their pros and cons in the context of AM. A short case study will demonstrate how effective powder testing can be used as part of root cause analysis in AM, which could save time and expense. Click here to register your interest
LPW Technology (LPW) and Global Advanced Metals Pty Ltd (GAM) announce cooperative agreement to further demonstrate suitability of spheroidized tantalum metal powder for 3D metal printing.
Across this emerging industry there are few examples of additively manufactured refractory metals, and a need exists for a more thorough proof of concept and development of print criteria. GAM is filling this void and expanding its product portfolio.
LPW’s pioneering AM metal powder factory is set to produce a new generation of clean powders suitable for use in production in safety-critical industries such as aerospace, medical and automotive.
The £20 m facility is the world’s first purpose-built production plant exclusively focused on the manufacture of AM metal powders. Located near Liverpool, the 90,000 sqft (9,700 m²) building sits on a seven-acre site and introduces full material traceability, digital integration and strict contamination control to the production process.
To read what ‘Manufacturing News’ has to say about this exciting new development click here
If ‘you are what you eat’, then it stands to reason an additively manufactured part will only be as good as the metal powder fed into the AM machine. On 15 March, 10:00 – 10:30 at the Additive World ‘Industrial 3d Printing Conference’ in Eindhoven, LPW’s CEO Dr Phil Carroll will present ‘From Pizza to Powder: the use of Machine Learning to control powders and realise the potential of new business models’.
Metal powder evolves during use and re-use. The thickness of the oxide layer increases with thermal cycling and exposure to oxygen in the atmosphere, and the changes affect the process parameters of the AM machine and the final mechanical properties of the end product.
LPW has developed a technique to correlate image analysis of metal powder to its oxygen content. Machine learning algorithms use colour data from the powder image to determine the oxide layer thickness and infer powder oxygen content information. From this data adaptive parameters can be developed for the AM machine to accommodate the change in the powder. Further data analysis of the image can be done offline to analyse trends and optimise the process. Food for thought!
LPW Technology, the market leader in the manufacture, development and processing of high quality metal powders and innovative solutions for additive manufacturing, describes the process and benefits of ‘Tap Density Testing for Metal Powders’, in its latest informative laboratory services datasheet.
“Tap density is influenced by the metal powder’s particle shape and particle size distribution, among other properties,” says Lisa Holman, LPW’s Quality Engineer. “The results can give an indication of the powder’s cohesivity, which can influence flow and affect its behaviour in the additive manufacturing process. It’s a useful measure of powder consistency for comparison and assurance, and also indicates how a powder might consolidate in transit.”
LPW’s state-of-the-art laboratories undertake a comprehensive range of testing services to ASTM as standard with ISO available on request, adding consistency and confidence to the AM process. To view the datasheet, click here