An Experimental and Analytical Method for Investigating Plastic Flow in Form Tapping
Article dans une revue avec comité de lecture
Date
2006Journal
Finite International Journal of Forming ProcessesAbstract
While threaded holes made by cutting taps result in material removal, in form tapping, the tap displaces the work material by plastic flow to form the thread section. The aim of the present work is to study, both experimentally and analytically, the 3D-plastic flow in form tapping of low-alloy steels. An experimental technique for producing and measuring the 3D displacement is proposed. Experimental results of displacements are used in the analytical analysis. The Green-Lagrange strain tensor is determined from the measurements obtained. The deviator stress tensor is calculated by using the constitutive law of the work material. The stress equilibrium allows the stress distribution resulting from the form tapping process. The results obtained show the quantification of the 3D-plastic flow, demonstrating that the external layer of the thread is strongly deformed. KEY WORDS: form tapping, plastic flow, thread formation.
Files in this item
- Name:
- LABOMAP_IJFP_Fromentin_2013.pdf
- Size:
- 1.047Mb
- Format:
- Description:
- article principal
Collections
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acteCAMPOCASSO, Sébastien; TRAPET, Florent; COSTES, Jean-Philippe; BISSEY BRETON, Stéphanie;
FROMENTIN, Guillaume;
POULACHON, Gerard (2012)
L'obtention des caractéristiques des pièces usinées ainsi que la bonne maîtrise du procédé d'usinage sont liées aux efforts de coupe. De nombreux modèles d'efforts de coupe ont déjà été développés, mais ils sont souvent ... -
Article dans une revue avec comité de lectureCAMPOCASSO, Sébastien; DENGUIR, Lamice; VIGNAL, Vincent;
FROMENTIN, Guillaume;
POULACHON, Gerard;
MARTINS DO OUTEIRO, Jose Carlos (Elsevier, 2015)
Strain distributions in the machined surface and subsurface of OFHC copper workpieces were determined experimentally and through numerical simulations. An experimental setup, comprising a double frame camera and a pulsed ... -
Article dans une revue avec comité de lectureThis paper presents the results of a study of lubrication in form tapping and aims at a better understanding of its effect. It appears that lubrication is of paramount importance. Oil with efficient high pressure additives ...
-
Article dans une revue avec comité de lectureThread milling is becoming more and more employed as a technique for producing thread, due to its advantages for industrial manufacturing sectors, such as the aeronautics, aerospace, and energy industries. The thread milling ...
-
Article dans une revue avec comité de lectureThis study deals with the thread milling process that is considered a complex machining technique due to its elaborated tool geometry and its tridimensional tool trajectory. It needed advanced research on the threading ...