The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process

The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process

In order to improve the performance of a twist drill, one must understand some aspects involved in drilling process that are not commonly addressed, such as the micro geometry employed in the tool’s tip sharpening and the protection of the main cutting edge. The edge of the twist drill can be protected by rounding, chamfering or the combination of both. This paper analyzes the influence of edge preparation by two different methods, honing and chamfering on a solid cemented carbide twist drill Ø11 mm, used in the machining and processing of SAE 4144M hardened and tempered steel (hardness: 380HV1), with a 100% martensitic structure, employed in injection pumps for diesel engines. The hole’s diameter, position deviation, roughness and roundness revealed significant differences in results. The tool with the honed edge presented lower wear values, when compared to the tool with the chamfered edge.

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Main Authors: Santana,Moises Izaias de, Polli,Milton Luiz
Format: Digital revista
Language:English
Published: ABM, ABC, ABPol 2015
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000800148
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spelling oai:scielo:S1516-143920150008001482016-01-04The Influence of Twist Drill Main Cutting Edge Preparation in Drilling ProcessSantana,Moises Izaias dePolli,Milton Luiz drilling twist drill re-sharpening honing In order to improve the performance of a twist drill, one must understand some aspects involved in drilling process that are not commonly addressed, such as the micro geometry employed in the tool’s tip sharpening and the protection of the main cutting edge. The edge of the twist drill can be protected by rounding, chamfering or the combination of both. This paper analyzes the influence of edge preparation by two different methods, honing and chamfering on a solid cemented carbide twist drill Ø11 mm, used in the machining and processing of SAE 4144M hardened and tempered steel (hardness: 380HV1), with a 100% martensitic structure, employed in injection pumps for diesel engines. The hole’s diameter, position deviation, roughness and roundness revealed significant differences in results. The tool with the honed edge presented lower wear values, when compared to the tool with the chamfered edge.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.18 suppl.2 20152015-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000800148en10.1590/1516-1439.352914
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Santana,Moises Izaias de
Polli,Milton Luiz
spellingShingle Santana,Moises Izaias de
Polli,Milton Luiz
The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
author_facet Santana,Moises Izaias de
Polli,Milton Luiz
author_sort Santana,Moises Izaias de
title The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
title_short The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
title_full The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
title_fullStr The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
title_full_unstemmed The Influence of Twist Drill Main Cutting Edge Preparation in Drilling Process
title_sort influence of twist drill main cutting edge preparation in drilling process
description In order to improve the performance of a twist drill, one must understand some aspects involved in drilling process that are not commonly addressed, such as the micro geometry employed in the tool’s tip sharpening and the protection of the main cutting edge. The edge of the twist drill can be protected by rounding, chamfering or the combination of both. This paper analyzes the influence of edge preparation by two different methods, honing and chamfering on a solid cemented carbide twist drill Ø11 mm, used in the machining and processing of SAE 4144M hardened and tempered steel (hardness: 380HV1), with a 100% martensitic structure, employed in injection pumps for diesel engines. The hole’s diameter, position deviation, roughness and roundness revealed significant differences in results. The tool with the honed edge presented lower wear values, when compared to the tool with the chamfered edge.
publisher ABM, ABC, ABPol
publishDate 2015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000800148
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