... in-situ anomaly detection thermal history quality control process monitoring National Science Foundation 10.13039/100000001 CMMI-2046515 One of the biggest limitations in the broader adoption of directed energy deposition (DED) based additive manufacturing (AM) techniques...

... Manufacturing: Tool Wear Monitoring With Audio Signals and Machine Learning ,” J. Manuf. Process. , 48 ( 4 ), pp. 66 – 76 . 10.1016/j.jmapro.2019.10.020 [32] Kothuru , A. , Nooka , S. P. , and Liu , R. , 2017 , “ Cutting Process Monitoring System Using Audible Sound Signals and Machine...

...Xinhua Shi; Lin Li; Suiran Yu; Lingxiang Yun Ultrasonic metal welding is one of the key technologies in manufacturing lithium batteries, and the welding quality directly determines the battery performance. Therefore, an online welding process monitoring system is critical in identifying abnormal...

... thermal modeling process monitoring melt pool additive manufacturing laser processes modeling and simulation rapid prototyping and solid freeform fabrication sensing monitoring and diagnostics National Institute of Standards and Technology 10.13039/100000161 70NANB18H220...

.... friction stir welding aluminum internal voids process monitoring forces Friction stir welding (FSW) is a solid-state joining method that relies on the use of a rotating tool to plastically deform workpieces and mechanically intermix them. The deformation that occurs during the process generates...

... control developments over the last several decades and, in this context, discusses future directions in the area. grinding and abrasive processes machining processes sensing manufacturing process control process monitoring control-oriented modeling forming processes joining processes...

... reduce the number of defective products. The proposed multifractal method shows strong potentials to be applied for process monitoring and control in a variety of domains such as ultraprecision machining and additive manufacturing. 1 Corresponding author. Manuscript received March 20, 2018...

... Corresponding author. Manuscript received February 15, 2018; final manuscript received November 19, 2018; published online January 17, 2019. Assoc. Editor: Sam Anand. 15 02 2018 19 11 2018 anomaly detection Gaussian processes metal additive manufacturing process monitoring spatial...

... [10] De Vries , E. , 2004 , “ Mechanics and Mechanisms of Ultrasonic Metal Welding ,” Ph.D. thesis, The Ohio State University, Columbus, OH. [11] Du , H. , and Klamecki , B. E. , 1999 , “ Force Sensors Embedded in Surfaces for Manufacturing and Other Tribological Process Monitoring...

... . Manuscript received March 29, 2011; final manuscript received March 20, 2012; published online June 26, 2012. Assoc. Editor: Robert Gao. 29 03 2011 20 03 2012 Research conducted on in situ process monitoring of resin transfer molded composites with fiber optic sensors is presented...

...C. A. Griffiths; S. S. Dimov; S. Scholz; H. Hirshy; G. Tosello Process monitoring of microinjection moulding ( μ IM) is of crucial importance when analysing the effect of different parameter settings on the process and then in assessing its quality. Quality factors related to cavity pressure can...

...C. A. Griffiths; S. S. Dimov; S. Scholz; G. Tosello Process monitoring of microinjection molding ( μ -IM ) is of crucial importance in understanding the effects of different parameter settings on the process, especially on its performance and consistency with regard to parts’ quality. Quality...

...-temperature behavior of the polymer but with limited accuracy. There are various process monitoring systems available in the market; none of which has the capability of directly monitoring and controlling the real time shrinkage and part dimensions online. With a view to measuring in-mold shrinkage, a button...

... , Wiley , New York . 05 11 2008 11 08 2010 04 10 2010 04 10 2010 condition monitoring dies (machine tools) forging principal component analysis process monitoring hierarchical classification multi-operation forging process monitoring and diagnosis tonnage...

... control process monitoring quality control welding equipment welds enhanced modified Faraday cup electron beam diagnostics process control power density distribution beam focus control Existing process controls in electron beam welding are typically directed at controlling...

... to be successful for all setups and for all wheel-workpiece combinations. This paper proposes a systematic approach, which allows the development and deployment of process-monitoring systems via automated sensor and feature selection combined with parameter-free model training, both of which are especially crucial...

...Hui Wang; Qiang Huang Traditional statistical process control (SPC) has been widely employed for the process monitoring in discrete part manufacturing. However, SPC does not consider any adjustment preventing the process drift. Furthermore, many in-line adjustment approaches, such as thermal error...

...-accel data 06 06 2003 16 08 2006 condition monitoring process monitoring extrusion layered manufacturing integrated circuit manufacture prosthetics cost reduction failure analysis quality management The current thrust of industries towards mass customization...

... ultrasonic pulse detector based on the complex Morlet wavelet was designed and experimentally investigated. The results have confirmed the effectiveness of the new signal-processing technique for on-line pressure sensing for injection molding process monitoring. 15 06 2004 20 07 2005...

... 25 04 2005 process monitoring condition monitoring sheet metal processing metal stamping time-varying systems autoregressive processes time-frequency analysis feature extraction inspection self-adjusting systems Sheet metal stamping is one of the most common manufacturing...