University-industry collaboration in curriculum design and delivery : A model and its application in manufacturing engineering courses
María Asunción Valiente Bermejo, Mahdi Eynian, Lennart Malmsköld, Americo Scotti
Mahdi Eynian
Universitetslektor
Docent
Organisationstillhörighet
Anställd på Avdelningen för Maskinteknik. Forskar inom teknik, produktionsteknik.Forskningsområde/forskningsintresse
Min forskning fokuserar på att förbättra bearbetningskvaliteten genom att undvika vibrationer. Särskilt studerar jag vibrationsinstabilitet i skärande bearbetning, så kallat "Chatter". Jag har arbetat med modellering av chatter i radiepinnfräsning och modellering av dämpningen i skärprocessen. Ett annat intressant område för mig är användningen av sensorer och mätmetoder för att studera bearbetningskvalitet. Jag studerar också metoder för mätning och förbättring strukturernas dynamiska styvhet. Dynamisk styvhet hos en struktur beror på dess geometri och materialegenskaper samt dess flexibilitet och friktion på kontaktytor i strukturen, och kan förbättras genom att förändringar i dessa faktorer.
Undervisning/handledning
Jag undervisar kurser i materialvetenskap och skärande bearbetning som ingår i Högskolan västs magister program i produktionsteknik. Jag har också deltagit i undervisning av kurser på grundnivå i finita elementmetoden, robotkinematik och tillverkningsteknik.
Nyckelord
Skärande bearbetning, Dynamiska skärkrafter, Dämpningen i skärprocessen, vibrationer vid skärande bearbetning (Chatter), Strukturdynamik.
Publikationer
Studies on surface roughness in stable and unstable end-milling
Mahdi Eynian, Sunday Ogheneochuko Usino, Ana Esther Bonilla
Simulation-Based Product Development Framework for Cutting Tool Geometry Design
Ashwin Moris Devotta, Tomas Beno, Mahdi Eynian
In-process identification of modal parameters using dimensionless relationships in milling chatter
Mahdi Eynian
Dynamic effects on cutting forces with highly positive versus highly negative cutting edge geometries
Adnan Agic, Mahdi Eynian, Jan Erik Ståhl, Tomas Beno
Sound Analysis in Drilling, Frequency and Time Domains
Amir Parsian, Martin Magnevall, Tomas Beno, Mahdi Eynian
Effect of tool wear on quality in drilling of titanium alloy Ti6Al4V, Part II : Microstructure and Microhardness
Kallol Das, Mahdi Eynian, Anders Wretland
Influence of radial depth of cut on entry conditions and dynamics in face milling application
Adnan Agic, Mahdi Eynian, S. Hägglund, J-E Ståhl, Tomas Beno
Selection of chatter-free milling conditions using vibration frequency measurements
Mahdi Eynian
Influence of cutting edge geometry on force build-up process in intermittent turning
Adnan Agic, Oleksandr Gutnichenko, Mahdi Eynian, Jan-Eric Ståhl
Time-Domain Modeling of Torsional-Axial Chatter Vibrations in Indexable Drills with Low Damping
Amir Parsian, Martin Magnevall, Tomas Beno, Mahdi Eynian
Vibration frequencies in stable and unstable milling
Mahdi Eynian
Frequency Domain Study of Vibrations above and under Stability Lobes in Machining Systems
Mahdi Eynian
Analytical Stability Prediction in Five Axis Ball-End Milling
Mahdi Eynian
Cutter Exit Effects during Milling of Thin-walled Inconel 718
Bertil Wanner, Mahdi Eynian, Tomas Beno, Lars Pejryd
Process Stability Strategies in Milling of Thin-walled Inconel 718
Bertil Wanner, Mahdi Eynian, Tomas Beno, Lars Pejryd
Minimizing the Negative Effects of Coolant Channels on the Torsional and Torsional-Axial Stiffness of Drills
Amir Parsian, Mahdi Eynian, Martin Magnevall, Tomas Beno
Predicting Continuous Chip to Segmented Chip Transition in Orthogonal Cutting of C45E Steel through Damage Modeling
Ashwin Moris Devotta, P. V. Sivaprasad, Tomas Beno, Mahdi Eynian
A modified Johnson-Cook model for ferritic-pearlitic steel in dynamic strain aging regime
Ashwin Moris Devotta, Palla Venkata Sivaprasad, Tomas Beno, Mahdi Eynian, Kjell Hurtig, Martin Magnevall, Mikael Lundblad
Experimental analysis of cutting edge effects on vibrations in end milling
Adnan Agic, Mahdi Eynian, J. -E Ståhl, Tomas Beno
New methods for in-process identification of modal parameters in milling
Mahdi Eynian, Martin Magnevall, Stefan Cedergren, Anders Wretland, Mikael Lundblad
Finite Element Modeling and Validation of Chip Segmentation in Machining of AISI 1045 Steel
Ashwin Moris Devotta, Tomas Beno, Ravendra Siriki, Ronnie Löf, Mahdi Eynian
Effect of tool wear on quality in drilling of titanium alloy Ti6Al4V, Part I : Cutting Forces, Burr Formation, Surface Quality and Defects
Mahdi Eynian, Kallol Das, Anders Wretland
Sensitivity of Axis Tracking Errors of Machine Tools to Tool Wear in Drilling
Mahdi Eynian, Anders Wretland
Influence of radial depth of cut on dynamics of face milling application
Adnan Agic, Mahdi Eynian, S. Hägglund, Jan-Eric Ståhl, Tomas Beno
Time Domain Simulation of Chatter Vibrations in Indexable Drills
Amir Parsian, Martin Magnevall, Mahdi Eynian, Tomas Beno
Prediction of vibration frequencies in milling using modified Nyquist method
Mahdi Eynian
A Mechanistic Approach to Model Cutting Forces in Drilling with Indexable Inserts
Amir Parsian, Martin Magnevall, Tomas Beno, Mahdi Eynian
Effect of thin viscoelastic material treatments of the clamping region on dynamic stiffness of the cantilever beams
Mahdi Eynian
Minimization of chatter in machining by the use of mobile platform technologies
Lars Pejryd, Mahdi Eynian, Thomas Beno
Milling Strategies for Thin-walled Components
Bertil Wanner, Mahdi Eynian, Tomas Beno, Lars Pejryd
Analytical Chatter Stability of Milling With Rotating Cutter Dynamics at Process Damping Speeds
Mahdi Eynian, Y. Altintas
Forskningsprojekt