...Asif Rashid; Ji Ho Jeon; Denis Boing; Shreyes N. Melkote Wire-arc directed energy deposition (DED) offers promise for large-scale metal component production, yet challenges persist in achieving consistent microstructure and mechanical properties. This paper investigates the effect of machining...

... able to absorb water from a humid environment. This absorption ability is intensified by increasing the conditioning temperature. The moisture diffusion process affects considerably the mechanical properties of the resulting composite, which causes many issues during the machining operations...

... be otherwise finished after printing. In this work, a custom-built three-axis machine with printing, machining, and chemical finishing capabilities was used for the experiments. The effect of mechanical finishing on surface characteristics was first quantified using chip load and spindle speed as independent...

...Alexandra Schueller; Christopher Saldaña Tool condition monitoring (TCM) has become a research area of interest due to its potential to significantly reduce manufacturing costs while increasing process visibility and efficiency. Machine learning (ML) is one analysis technique which has demonstrated...

...Xiaolong Bai; Andrew B. Kustas; James B. Mann; Srinivasan Chandrasekar; Kevin P. Trumble Shear-based deformation processing by hybrid cutting-extrusion and free machining are used to make continuous strip, of thickness up to 1 mm, from low-workability AA6013-T6 in a single deformation step...

... optimization approach based on artificial intelligence (AI) to generate digital process twins (DPTs). The utility of the DPT approach is demonstrated in the case of finish machining of aerospace components made from gamma titanium aluminide alloy (γ-TiAl). This particular component has been plagued...

...C. Puneet; Krishna Valleti; A. Venu Gopal Providing advanced coating solutions for high-speed dry machining applications is gaining importance by the day especially with the increasing employment of difficult-to-machine materials in niche areas. Taking into account the recent demands in developing...

... is a significant concern. The combination of mechanical, thermal, and chemical properties of Inconel 718 has made it a difficult-to-machine material. Despite recent advances in machining Inconel 718, achieving desired surface integrity with prescribed properties is still not possible. Different machining...

..., it becomes imperative to study their machining behavior. In this article, for the first time in the literature, machining characteristics of AZ91 magnesium foam reinforced with thin-walled hollow alumina ceramic microspheres being studied. Through cutting experiments, it is found that finer the size...

... alloys (WHAs) under high strain rate conditions using machining tests in conjunction with Oxley’s predictive model and particle swarm optimization (PSO) algorithm. Currently, availability of the high strain rate data for 97 WHA are limited and consequently, JC constants for the same are not readily...

...I. S. Jawahir; J. Schoop; Y. Kaynak; A. K. Balaji; R. Ghosh; T. Lu The topic of sustainable machining has in recent times emerged as a significant and impactful area of research focus as it directly deals with environmental health and protection, economic growth and prosperity, and societal...

...Haipeng Qiao; Tejas G. Murthy; Christopher Saldana The effects of surface structure on mechanical performance for open-cell aluminum foam specimens were investigated in the present study. A surface gradient for pore structure and diameter was introduced into open-cell aluminum foams by machining...

...; published online November 8, 2018. Assoc. Editor: Laine Mears. 04 06 2018 04 10 2018 machining cutting force Kienzle model Bayesian inference MCMC Machining models provide relationships between user-selected inputs (feed, cutting speed, tool geometry) and the process outputs...

...Faissal Chegdani; Mohamed El Mansori Natural fibers are emerging in many industrial sectors to perform eco-friendly materials such as bio-composites. However, machining of natural fiber reinforced polymer (NFRP) composites remains a complex manufacturing process and the machinability of industrial...

.... A previously developed methodology for assessing the worn tool material volume is utilized for quantifying the VTW of carbide tools when machining Ti–6Al–4V. To capture the tool response, controlled milling experiments are conducted at suitable corner points of the recommended feed-speed design space...

... Instability in Machining ,” Ann. CIRP , 44 , pp. 69 – 74 . 10.1016/S0007-8506(07)62277-X [3] Davies, A., Burns, T., and Evans, C., 1997, “On the Dynamics of Chip Formation in Machining Hard Metals,” CIRP Ann. Manuf. Technol. , 46 (1), pp. 25–30. 10.1016/S0007-8506(07)60768-9 [4] Sun , S...

...Yao Xi; Michael Bermingham; Gui Wang; Matthew Dargusch Manuscript received April 21, 2013; final manuscript received October 9, 2013; published online November 18, 2013. Assoc. Editor: Yung Shin. 21 04 2013 09 10 2013 The improvement in machinability during thermally...

..., 2013; published online September 11, 2013. Assoc. Editor: Burak Ozdoganlar. 17 01 2013 26 06 2013 The atomization-based cutting fluid (ACF) spray system has recently been proposed as a cooling and lubrication solution for machining hard to machine materials (e.g., titanium alloys...

..., 2013; published online September 11, 2013. Assoc. Editor: Tony Schmitz. 16 07 2012 27 06 2013 The 5-axis tool positioning strategy named rotary contact method (RCM) for sculptured surfaces machining has been developed in our previous paper (Fan et al., 2012, “Rotary Contact Method...

... online July 17, 2013. Assoc. Editor: Patrick Kwon. 01 07 2011 07 06 2013 11 06 2013 Design and machining of the fatigue test specimens have significant effects on the duration and reliability of fatigue test. Fatigue test specimens essentially consist of three parts: the center...