Recommended symbols in forming technology for CIRP unified terminology

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unified terminology

Citation for published version (APA):

Houtackers, L. J. A. (1986). Recommended symbols in forming technology for CIRP unified terminology. (version 5 ed.) (TH Eindhoven. Afd. Werktuigbouwkunde, Vakgroep Produktietechnologie : WPB; Vol. WPA0301). Technische Hogeschool Eindhoven.

Document status and date: Published: 01/01/1986 Document Version:

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for CIRP UNIFIED TERMINOLOGY

revised by: L.J.A. Houtackers on invitation by CIRP

WPA-Rapport nr. 0301 (version 5) febr. '86 lJL

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INTERNATIONAL INSTITUTION FOR PRODUKTION ENGINEERING RESEARCH

INTERNATIONALE FORSCHUNGSGEMEINSCHAFT FUR MECHANISCHE PRODUKTIONSTECHNIK COLLEGE INTERNATIONAL POUR L'ETUDE SCIENTIFIQUE DES TECHNIQUES DE PRODUCTION

MECHANIQUE

Scientific Technical Committee aF· (Forming)

RECOMMENDED

SYMBOLS IN FORMING TECHNOLOGY

*approved by Scientific Technical Committee "Forming" of C.l.R.P. in Paris, Jan. 1986 for

C.I.R.P. UNIFIED TERMINOLOGY

revised by L.J.A. Houtackers on invitation by C.I.R.P.

Division of Production Engineering and -Automation Department of Mechanical Engineering

Eindhoven University of Technology

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Explanation: - Numbers in column 3 refer to terms and texts in C.l.R.P. dictionary (part 5) in which the symbol of column 1 is used

in a meaning which conforms to that in column 4;

- + behind number of term: no symbol mentioned in dictionary; - (d) behind number of term: difinition;

- E

=

English text only; G

=

German text only; F

=

French text only.

- number in column 5

=

ClRP Nr. in ClRP UNIFIED TERMINOLOGY (Annals of the CIRP Vol. 33/2/1984 p. 575-581)

SYMBOL C.I.R.P.

dict,iona;[~ RECOMMENDED MEANING SEE

Pref. CIRP-UT vol. 5

33/211984 - acceleration a a - Beschleunigung 1.10 - acceleration - area, cross-section A A 5302 EG - Flache, Querschnitt 1.4 - aire, section - angle a a - Winkel 1 . 1 - angle - width b b - Breite 1.3 - largeur

- engineering deformation number, deep drawing ratio

p - Proceszkennzahl, Tiefziehverhaltnis 1 . 1

- parametre du procede de deformation, rapport d'emboutissage

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c c

c

d d e E E E E £ £ 5331 E(d)

- specific heat capacity - spezifische Warme Kapazitat - chaleur massique - constant - Konstante - constante - diameter - Durchmesser - diametre

used for differentials, increments or differences

- linear engineering strain - lineare Dehnung (bezogen auf

A4.1 also 4.11

1.3

Ausgangslange) 3.15

- allongement brut, dilatation linique See also £

- Young's modulus of elasticity

- Elastizitatsmodul 3.19

- module de Young, module d'elasticite (longitudinal)

- potential, input energy

- Energie 3.28

- energie

- natural strain (true strain)

5331 EF(d) - naturl. (log.) Dehnung (Lokalwert) 3.15 - deformation vraie (def. rationnelle)

-

(coefficient de) rendement - see ~

- force (load) 5301 GF(d) - Kraft (Belastung)

- force (effort)

- value of natural strain *)

- Umformgrad (log.

Formanderungsver

-3.23

3.8

haltnis) 1.1

- valeur de la deformation vraie ou rationnelle

*) under the assumption of

homoge-neous deformation

- natural strain rate *)

- Umformgeschwindigkeit

- valeur de la vitesse de deformation t) under the assumption of

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- equivalent strain *)

- Vergleichsumformgrad

-

_{- valeur de la deformation totale}

cp

equivalente

*) under the assumption of homoge-neous deformation

- equivalent strain rate *)

- Vergleichsumformgeschwindigkeit

...

cp - valeur de la vitesse de deformation

equivalente

*) under the assumption of homoge-neous deformation -9 9 1 . 11 - shear modulus G G - Schubmodul 3.20 - module de cisaillement

5331 - shear strain. shear angle

"1 "1 - Schiebung. Schiebung(swinkel) 3.16

5338 - deformation de cisaillement

- shear strain rate

1 - Schiebungsgeschwindigkeit - vitesse de deformation de cisaillement - height h h - Hohe 1.3 - hauteur

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5304 (d) + - stroke length

H 5651 (d) ₊ - Hub

5654 + - course

5348 (d) - shear flow stress

k 5349 (d) - Schubflieszspannung (von Mises)

- limite d'elasticite au cisaillement

- compression modulus K K - Kompressions modul 3.21 - module de compression 5331

-

length 1 1 5736 - Lange 1.3 etc. - longeur - mass m m - Masse 3.1 - masse

- plastic friction factor

m m

-

(plastische) Reibungszahl 3.10

-

...

- moment

M M - Moment

- moment

- Coulomb's friction coefficient

~,f ~ 5381 (d) - Coulombse Reibungszahl 3.23

- coefficient de frottement

- strain hardening exponent

n 5470 (d) - Verfestigungsexponent

- coefficient d'ecrouissage

- Poisson ratio

v v - Poissonzahl 3.18

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- angular velocity w UI - Winkelgeschwindigkeit 1.7 - vitesse angulaire - pressure p p 5302 - Flachenpressung (Druck) 3.12 - pression

- power (work per unit time)

p p _{- Leistung} _3.29

- puissance

- quantity (of heat, fluid)

Q Q - Menge (Warme-, Flussigkeits-) 4.6

- quantite (de chaleur, liquide)

- radius (polar coordinate)

r r - Radius (Polarkoordinate) 1.3

- rayon (coordonnee polaire)

5309 EF(d) - anisotropy parameter

r - Kennwert fur Anisotropie

- coefficient d'anisotropie

- area reduction ratio

R - Querschnittsverhaltnis

- variation de la section tranversale

- bending radius ~ - Biegeradius - rayon de pliage - thickness 5 - Dicke, Blechstarke 1.3 - epaisseur

-

proceswe9·

S

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5339 (d) a a 5341 (d) 0' 5344 (d) -a 5345 E(d) t t 5342 (d) t t T T

- components of stress tensor (in orthonormal vectorbasis)

- Komponenten des Spannungstensors (in orthonormaler Vektorbasis) - composantes du tenseur des

contraintes

- components of deviatoric (reduced) stress tensor (in orthonormal vectorbasis)

- Komponenten des deviatiorischen (reduzierten) Spannungstensors (in orthonormaler Vektorbasis)

- composantes du tenseur deviatorique (reduit) des contraintes, Mdeviateur"

- hydrostatic or mean stress

- hydrostatische Spannungskomponente - contrainte hydrostatique

- flow stress value - Flieszspannung

- tension d'ecoulement

- effective (generalized, equivalent) stress

- Vergleichspannung

- contrainte equivalente (effective, generalisee - shear stress - Schubspannung, (Scherspannung) - contrainte de cisaillement - time - Zeit - temps - temperature - Temperature - temperature 3.13 1.6 4.1

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8 - Winkel - angle u u 5306 G - displacement, velocity v v - Verschiebung, Geschwindigkeit 1.9 w w - deplacement, vitesse - clearance U - Ziehspalte - marge d'outil I - volume V V - Volumen, Rauminhalt 1.5 - volume

- work, dissipated energy 3.27

W W - Arbeit

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GENERAL SUBSCRIPTS ALLGEMEINE INDIZES SYMBOLES INDICES

Pref. meaning Bedeutung signification

- axial a - axial - axial - width, bottom b - Breite, Boden - largeur, fond

.

- bending B - Biegung - pliage - critical c - kritisch - critique - contact C - kontakt - contact - die, drawing D - Matrize, Ziehen - matrice, etirage

- deformation _{ex: Tdef} def - Umform

- deformation

- final, electric e - Endwert, elektrisch

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- effective eff - Effektivwert - effectif - elastic el - elastisch - elastique - flow f - Fliesz - ecoulement - fracture F - Bruch - rupture - friction Fr - Reibung - frottement - height h - Hohe - hauteur

- denoting components of a tensor

i,j - Be~eichnung fur Tensorkomponente

- indices des composants d'un tenseur

- ideal id - ideell - ideal - inner I - innen - interne - length, longitudinal

1 - Lange (Langskomponente), longitudinal - longeur, longitudinal

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-

lower L - unter - inferieure - average _{ex: om} m - Mittelwert - moyenne - machine M - Maschine - machine - maximum

max - Maximalwert, Grenzwert

- maximum

- minimum

min

-

Minimalwert, Grenzwert

- minimum

- normal

n - normal ex: normal Force = _Fn

- normal - nomimal N - nominal (Nennwert) - nominal

-

initial, original 0 - Anfangswert - initial - outer 0 - auszer - externe - optimal opt. - Optimalwert - optimal

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- pressure p - Druck - pressiom - punch p _{- Stempel} - poin~on - plastic pI - plastisch - plastique - radial r - radial - radial - relative reI - relativ - relatif - shearing, blanking S - Scherschneiden - poin~onnage - specific 5 - spe7.ifisch - specifique - tangential t - tangential - tangential - total tot - total - total - torsion, tensile T - Torsion, Zug - torsion, traction

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- uniform, ultimate u - gleichmassig, ausserste - uniforme, ultime - upper U - oben - superieure - workpiece W - Werksttick - eprouvette x

-

in direction x etc. y - in x-Richtung usw. z - en direction x etc. 1 - principal directions 2 - Hauptrichtungen 3 - directions principales r - polar coordinates 8 - Polarkoordinaten z - coordonnees polaires