Tomas Beno

A detailed investigation of residual stresses after milling Inconel 718 using typical production parameters for assessment of affected depth

Production of superalloy gas turbine parts involves time consuming milling operations typically performed in a sequence from rough to finish millin...

A Mechanistic Approach to Model Cutting Forces in Drilling with Indexable Inserts

Holes are made in many industrial parts that need screws, pins or channels for passing fluids. The general method to produce holes in metal cutting...

A Methodology for Temperature Correction When Using Two-Color Pyrometers : Compensation for Surface Topography and Material

In this investigation, the applicability of the two-color pyrometer technique for temperature measurements in dry hard turning of AISI 52100 steel...

A modified Johnson-Cook model for ferritic-pearlitic steel in dynamic strain aging regime

In this study, the flow stress behavior of ferritic-pearlitic steel (C45E steel) is investigated through isothermal compression testing at differen...

A survey of metal working companies’ readiness for process planning performance measurements

The paper presents an investigation regarding the potential and the readiness for implementing performance indicators and performance measurement...

Analysis of Tool Utilization from Material Removal Rate Perspective

An end of life strategy algorithm has been used to study a CNC program to evaluate how the cutting inserts are used in terms of their full...

Characterization of Chip Morphology in Oblique Nose Turning employing High Speed Videography and Computed Tomography Technique

Simulation of industrial cutting processes employing physics based numerical models provide valuable insights into its deformation mechanics....

Characterization of tool wear when machining Alloy 718 with high pressure cooling using conventional and surface-modified WC-Co tools

Coolant supplied by high pressure into the cutting zone has shown to lower thermal loads on the tool when machining difficult-to-cut materials as...

Characterization of tool wear when machining alloy 718 with high-pressure cooling using conventional and surface-modified WC-Co tools

Coolant supplied by high pressure into the cutting zone has shown the lower thermal loads on the tool when machining difficult-to-cut materials as...

CNC machining process planning productivity – a qualitative survey

Process planning is the link between design and manufacturing and consequently an important function, since it influences many of the company...

Computed Tomography as a Tool for Examining Surface Integrity in Drilled Holes in CFRP Composites

In light weight structures the joining of composite materials and of composites to metals are key technologies. A manufacturing method associated...

Coolant boiling and cavitation wear : a new tool wear mechanism on WC tools in machining Alloy 718 with high-pressure coolant

In recent years, research interest in liquid coolant media applied to the tool–workpiece interface (the tertiary shear zone) has grown considerably...

Cutter Exit Effects during Milling of Thin-walled Inconel 718

During milling of thin-walled components, chatter vibrations give rise to process issues. These include dimensional inaccuracy, damaged and scrap...

Cutting temperatures during hard turning : Measurements and effects on white layer formation in AISI 52100

This paper concerns the temperature evolution during white layer formation induced by hard turning of martensitic and bainitic hardened AISI 52100...

Detectability of various machining conditions by using internal encoder signals

Automated Tool Condition Monitoring (TCM) often relies on additional sensors sensitive to tool wear to achieve robust machining processes. The need...

Dynamic effects on cutting forces with highly positive versus highly negative cutting edge geometries

Understanding the influence of the cutting edge geometry on the development of cutting forces during the milling process is of high importance in...

EDS Analysis of Flank Wear and Surface Integrity in Machining of Alloy 718 with Forced Coolant Application

There has been extensive research on forced coolant application, usually known as high pressure coolant, in machining heat resistant super alloys....

Effects of high pressure cooling in the flank and rake faces of WC tool on the tool wear mechanism and process conditions in turning of alloy 718

The exceptional properties of Heat Resistant Super Alloys (HRSA) justify the search for advanced technologiesthat can improve the capability of...

Energy and Cost Efficiency in CNC Machining from a Process Planning Perspective

The role of process planning as an enabler for cost efficient and environmentally benign CNC machining is investigated in the paper. Specific energ...

Energy and Cost Estimation of a Feature-based Machining Operation on HRSA

Forward-looking manufacturing companies aim for sustainable production with low environmental footprint. This is true also for aerospace...

Evaluation of surface integrity after high energy machining with EDM, Laser Beam Machining and Abrasive Water Jet Machining of Alloy 718

Development of future aero engine components based on new design strategies utilising topological optimisation and additive manufacturing has in th...

Experimental analysis of cutting edge effects on vibrations in end milling

The ability to minimize vibrations in milling by the selection of cutting edge geometry and appropriate cutting conditions is an important asset in...

FE Modelling and Characterization of Chip Curl in Nose Turning process

Finite Element Modeling and Validation of Chip Segmentation in Machining of AISI 1045 Steel

The finite element (FE) method based modeling of chip formation in machining provides the ability to predict output parameters like cutting forces...

Finite element modelling and characterisation of chip curl in nose turning process

Finite element (FE) modelling of machining provide valuable insights into its deformation mechanics. Evaluating an FE model predicted chip morpholo...

Flank wear characteristics of WC-Co tools when turning Alloy 718 with high-pressure coolant supply

In the present study, the tool wear mechanisms of uncoated cemented tungsten carbide (WC-Co) tools during machining Alloy 718 with high-pressure...

Green machining : improving the bottom line

The aim of this paper is to present how Green machining can be established in the metal working industry for taking immediate actions towards a mor...

High-pressure flank cooling and chip morphology in turning Alloy 718

The use of cutting fluids is commonly considered a necessity while machining Heat Resistant Super Alloys (HRSA). Specifically, cutting fluids appli...

Impact of energy efficiency on computernumerically controlled machining

Increasing environmental demands from governmental bodies and customers stress the importance of companies improving their environmental performanc...

Improved cutting force measurements in milling using inverse filtering

Accurate estimates of cutting forces in metal cutting are important in the evaluation of e.g. different cutting tool geometries and concepts....

Influence of radial depth of cut on dynamics of face milling application

The choice of milling cutter geometry and appropriate cutting data for certain milling application is of vital importance for successful machining...

Influence of radial depth of cut on entry conditions and dynamics in face milling application

The choice of milling cutter geometry and appropriate cutting data for certain milling application is of vital importance for successful machining...

Influence of Surface Features for Increased Heat Dissipation on Tool Wear

The critical problems faced during the machining process of heat resistant superalloys, (HRSA), is the concentration of heat in the cutting zone an...

In-Process Tool Wear Detection Using Internal Encoder Signals for Unmanned Robust Machining

Automated Tool Condition Monitoring (TCM) often relies on additional sensors sensitive to tool wear to achieve robust machining processes. The need...

Integrated optimization model for cutting data selection based on maximal MRR and tool utilization in continuous machining operations

The search for increased productivity can be interpreted as the increase of material removal rate (MRR). Namely, increase of feed, depth of cut...

Investigation of micro-textured cutting tools used for face turning of alloy 718 with high-pressure cooling

There is an increasing demand to improve the service life of cutting tools during machining of heat resistant superalloys (HRSA). Various studies...

Investigation of Minimal Quantity Cooling Lubrication in Turning of Inconel 718

Investigation of Minimal Quantity Lubrication in Turning of Waspalloy

Investigation of Modified Cutting Insert with Forced Coolant Application in Machining of Alloy 718

Abstract In the last decades machining methods have witnessed an advancement in both cutting tools and coolant/lubrication, sometimes in combinatio...

Machine tool and process condition monitoring using Poincaré maps

Machine Tool Internal Encoders as Sensors for the Detection of Tool Wear

Tool wear in machining changes the geometry of the cutting edges, which effect the direction and amplitudes of the cutting forcecomponents and the...

Machining aerospace material with sub-cooled minimal quantity cppling lubrication fluids

Machining aerospace materials with room-temperature and cooled minimal-quantity cutting fluids

Measurement method for the identification of individual teeth in milling operations

Internal sensors already available in the machine tools may prove to be an interesting approach to monitor the machining process. Accurate...

Measurement of cutting edge temperature in drilling

In this paper a methodology is described to conduct temperature measurement on the cutting edges and the clearance faces on twist drills using a...

Milling Strategies for Thin-walled Components

Recent developments in the Aerospace industry have led to thin-walled, reduced-weight engine designs. Due to demands in manufacturing, production...

Minimizing the Negative Effects of Coolant Channels on the Torsional and Torsional-Axial Stiffness of Drills

Coolant channels allow internal coolant delivery to the cutting region and significantly improve drilling, but these channels also reduce the...

Modeling of Chip curl in Orthogonal Turning using Spiral Galaxy describing Function

With advances in modeling of machining process, a methodology for quantitative evaluation of the chip curl shape in orthogonal turning process is...

New Aspects on Condition Monitoring of Machine Tools and Machining Processes

A general trend within the manufacturing community and in particular the aerospace industry is that the requirements on the manufacturing of...

Next Generation Insert for Forced Coolant Application in Machining of Inconel 718

Machining technology has undergone an extensive evolution throughout the last decades in its capability to machine hard-to-cut material. This paper...