Burr Measurement: A Round Robin Test Comparing Different Methods

Franke, Vikki; Leitz, Lukas; Aurich, Joerg

doi:10.1007/978-3-642-00568-8_18

Cited by 10 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A round robin on burr measurement systems has been conducted within the CIRP working group on burrs. The results of burr measurements applying different systems are compared by Franke in [44].…”

Section: Comparison Of Measuring Methodsmentioning

confidence: 99%

Burrs—Analysis, control and removal

et al. 2009

Self Cite

View full text Add to dashboard Cite

Section: Comparison Of Measuring Methodsmentioning

confidence: 99%

Burrs—Analysis, control and removal

et al. 2009

Self Cite

View full text Add to dashboard Cite

“…burr size can be measured using the Optical microscopes [95], surface profile-meters [96], image processing software and by means of a surface roughness profile-meters. Further details about the methods used for detection and measuring burr according to various criteria can be found in reference [97].…”

Section: Surface Roughness Hole Size and Circularity And Burr Formentioning

confidence: 99%

Recent advances in drilling of carbon fiber–reinforced polymers for aerospace applications: a review

Aamir

Tolouei‐Rad

Giasin³

et al. 2019

Int J Adv Manuf Technol

220

View full text Add to dashboard Cite

Drilling is considered as one of the more challenging problems in the aerospace structures stringent tolerance required for fasteners such as rivets and bolts to join the mating parts for the final assembly. Fiber-reinforced polymers are widely used in aeronautical applications due to their superior properties. One of the major challenges lays in the machining such polymers is the poor drilled-hole quality which reduces the strength of the composite and leads to part rejection at the assembly stage. In addition, rapid tool wear due to the abrasive nature of composites requires frequent tool change which result in high tooling and machining costs. This review intended to give in-depth details on the progress of drilling of fiber-reinforced polymers with special attention given to carbon fiber reinforced polymers. The objective is to give a comprehensive understanding of the role of drilling parameters and composite properties on the drilling induced damage in machined holes. Also, the review looks into the drilling process parameters and its optimization techniques, and the effects of dust/ aerosols on human health during the machining process. This review will provide the scientific and industrial communities with their advantages and disadvantages through better drilled-hole quality inspection.

show abstract

“…and Aurich [54], was evaluated and for the purposes of this experiment. The SEM was deemed the most appropriate because it afforded the necessary levels of magnification and accuracy, and measuring software.…”

Section: Burr Measurement Methodsmentioning

confidence: 99%

“…By estimating the initial thickness of deforming material, , burr height and thickness were calculated through evaluating strain distribution and volume conservation of plastic deformation of work material around the circumference of the drilled hole. Kim and Dornfeld's burr height and thickness-graphical model overlaps to a degree with that of Schäfer [53], [54]. Schäfer used a burr cross section to describe basic burr characteristics, where burr height was determined by the span from the edge of the workpiece to the burr's highest point in the cross section.…”

Section: Burr Measurementmentioning

confidence: 99%

Drilling Burr Formation With Tool Wear

Mandra¹

2021

Preprint

View full text Add to dashboard Cite

Automated assembly processes are being widely used in aircraft manufacturing as a hole must be drilled before fastener installation. Burr formation is of importance for machining processes including drilling. A burr, an unwanted by‐product of machining, is a raised edge that remains attached to a workpiece because of the loss of shear action. In drilling, burrs form as the drill enters and exits the part, particularly when the tool becomes worn. Burrs require an additional process to deburr, incurring extra cost and time. To understand drilling burr formation, this dissertation presents a new model that combines a burr model with a tool‐wear model. The first adopted model describes a burr with respect to its height and thickness and relates burr formation to the drilling thrust force generated from drilling with a sharp tool. This model comprises a number of key factors: part material property, tool geometry, and drilling parameters. In reality, these factors will vary. Preliminary work was done to use this model to develop a sensitivity matrix for the purpose of studying the effect of variation in the key factors on burr formation. Unfortunately, tool wear, which is a major issue, cannot be simply considered as a variation in tool geometry. When a tool becomes worn, the cutting edge radius becomes large, and the cutting action changes from shearing to ploughing. A second model adopted is a tool wear model, leading to the core work of this dissertation. The aim of this study is to develop a drilling burr‐formation model for realistic conditions, incorporating variance within the tool and process parameters. The proposed method applies a weighting model that can consider the wear/no‐wear condition for each segment, thereby leading to a hybrid model for drilling burr formation. The research method is validated through simulation and an experiment entailing the generation of drilling burrs in conditions mimicking those in aerospace manufacturing. The results show that the model successfully estimates burr height and thickness trends with increasing levels of tool wear, for penetrated holes. The methods and results presented in this dissertation show good promise for understanding the effects of tool wear on drilling burr growth.

show abstract

Burr Measurement: A Round Robin Test Comparing Different Methods

Cited by 10 publications

References 0 publications

Burrs—Analysis, control and removal

Burrs—Analysis, control and removal

Recent advances in drilling of carbon fiber–reinforced polymers for aerospace applications: a review

Drilling Burr Formation With Tool Wear

Contact Info

Product

Resources

About