Accuracy of hard turning

J. Kundrák, B. Karpuschewski, K. Gyani, V. Bana

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Nowadays, hard turning is frequently used to replace grinding. The economic benefits of hard turning are obvious but for achievable accuracy the situation is somewhat ambiguous. Although machine tool factories offer lathes with the same accuracy as grinding machines in some cases problems may arise in keeping the prescribed geometrical accuracy. Investigations were performed in a working environment in order to determine the attainable size, form and positional accuracy obtained with hard turning. Error sources of machining errors that occurred in hard turning and in grinding were taken into account, giving typical differences between the two processes. In the parts produced in series, size deviations were measured as well as out-of-roundness, cylindricity error and parallelism error of the bore's generatrices. The workpieces used for the investigation are disc-type parts with bores, i.e., gears that are built into transmissions. Our first measuring series evaluates the achievable accuracy with hard turning while the second includes the comparison of grinding with hard turning. The most important error sources are identified. We present measures for keeping prescribed tolerances and propose methods for eliminating the means error source.

Original languageEnglish
Pages (from-to)328-338
Number of pages11
JournalJournal of Materials Processing Technology
Volume202
Issue number1-3
DOIs
Publication statusPublished - Jun 20 2008

Fingerprint

Lathes
Grinding machines
Machine tools
Industrial plants
Gears
Machining
Economics

Keywords

  • Accuracy
  • Form error
  • Hard turning
  • Size error

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Accuracy of hard turning. / Kundrák, J.; Karpuschewski, B.; Gyani, K.; Bana, V.

In: Journal of Materials Processing Technology, Vol. 202, No. 1-3, 20.06.2008, p. 328-338.

Research output: Contribution to journalArticle

Kundrák, J. ; Karpuschewski, B. ; Gyani, K. ; Bana, V. / Accuracy of hard turning. In: Journal of Materials Processing Technology. 2008 ; Vol. 202, No. 1-3. pp. 328-338.
@article{26898004993942bc8bcb48354e26cd6d,
title = "Accuracy of hard turning",
abstract = "Nowadays, hard turning is frequently used to replace grinding. The economic benefits of hard turning are obvious but for achievable accuracy the situation is somewhat ambiguous. Although machine tool factories offer lathes with the same accuracy as grinding machines in some cases problems may arise in keeping the prescribed geometrical accuracy. Investigations were performed in a working environment in order to determine the attainable size, form and positional accuracy obtained with hard turning. Error sources of machining errors that occurred in hard turning and in grinding were taken into account, giving typical differences between the two processes. In the parts produced in series, size deviations were measured as well as out-of-roundness, cylindricity error and parallelism error of the bore's generatrices. The workpieces used for the investigation are disc-type parts with bores, i.e., gears that are built into transmissions. Our first measuring series evaluates the achievable accuracy with hard turning while the second includes the comparison of grinding with hard turning. The most important error sources are identified. We present measures for keeping prescribed tolerances and propose methods for eliminating the means error source.",
keywords = "Accuracy, Form error, Hard turning, Size error",
author = "J. Kundr{\'a}k and B. Karpuschewski and K. Gyani and V. Bana",
year = "2008",
month = "6",
day = "20",
doi = "10.1016/j.jmatprotec.2007.09.056",
language = "English",
volume = "202",
pages = "328--338",
journal = "Journal of Materials Processing Technology",
issn = "0924-0136",
publisher = "Elsevier BV",
number = "1-3",

}

TY - JOUR

T1 - Accuracy of hard turning

AU - Kundrák, J.

AU - Karpuschewski, B.

AU - Gyani, K.

AU - Bana, V.

PY - 2008/6/20

Y1 - 2008/6/20

N2 - Nowadays, hard turning is frequently used to replace grinding. The economic benefits of hard turning are obvious but for achievable accuracy the situation is somewhat ambiguous. Although machine tool factories offer lathes with the same accuracy as grinding machines in some cases problems may arise in keeping the prescribed geometrical accuracy. Investigations were performed in a working environment in order to determine the attainable size, form and positional accuracy obtained with hard turning. Error sources of machining errors that occurred in hard turning and in grinding were taken into account, giving typical differences between the two processes. In the parts produced in series, size deviations were measured as well as out-of-roundness, cylindricity error and parallelism error of the bore's generatrices. The workpieces used for the investigation are disc-type parts with bores, i.e., gears that are built into transmissions. Our first measuring series evaluates the achievable accuracy with hard turning while the second includes the comparison of grinding with hard turning. The most important error sources are identified. We present measures for keeping prescribed tolerances and propose methods for eliminating the means error source.

AB - Nowadays, hard turning is frequently used to replace grinding. The economic benefits of hard turning are obvious but for achievable accuracy the situation is somewhat ambiguous. Although machine tool factories offer lathes with the same accuracy as grinding machines in some cases problems may arise in keeping the prescribed geometrical accuracy. Investigations were performed in a working environment in order to determine the attainable size, form and positional accuracy obtained with hard turning. Error sources of machining errors that occurred in hard turning and in grinding were taken into account, giving typical differences between the two processes. In the parts produced in series, size deviations were measured as well as out-of-roundness, cylindricity error and parallelism error of the bore's generatrices. The workpieces used for the investigation are disc-type parts with bores, i.e., gears that are built into transmissions. Our first measuring series evaluates the achievable accuracy with hard turning while the second includes the comparison of grinding with hard turning. The most important error sources are identified. We present measures for keeping prescribed tolerances and propose methods for eliminating the means error source.

KW - Accuracy

KW - Form error

KW - Hard turning

KW - Size error

UR - http://www.scopus.com/inward/record.url?scp=42949110613&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42949110613&partnerID=8YFLogxK

U2 - 10.1016/j.jmatprotec.2007.09.056

DO - 10.1016/j.jmatprotec.2007.09.056

M3 - Article

VL - 202

SP - 328

EP - 338

JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

SN - 0924-0136

IS - 1-3

ER -