Machining Forces_Merchant's Circle Diagram

31 views 40 slides Oct 12, 2023
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About This Presentation

Machining Forces_Merchant's Circle Diagram

Size: 1.38 MB
Language: en
Added: Oct 12, 2023
Slides: 40 pages

Slide Content

Dr.JayantaKr.Mahato
Assoc.Professor
MechanicalEngineeringDept.
ShobhitDeemedto-beUniversity
Contact:[email protected]

Shear&FrictionZonesand DifferentForceComponents
ShearZone
Fs
Ff
Fn
N
FrictionZone
Fc
Ft
CuttingForce(Fc):Actsinthe
directionofcuttingspeedand
paralleltotheworkpiecesurface
andsuppliesenergyrequiredfor
cutting.
ThrustForceorTangentialForce
(Ft):Actsinadirectionnormalto
thecuttingvelocity,thatis
perpendiculartotheworkpiece
surface.
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

DifferentForceComponents
ShearZone
FrictionZone
Fs
Fn
Ff
N
Fc
Ft
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

DifferentForceComponents
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

DifferentForceComponents
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

DifferentForceComponents
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConceptofMerchant’sCircleDiagram
Merchant’sCircle
Diagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConstructionofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

SolutionofMerchant’s CircleDiagram
R
R
/A
Q
B
P
L M N
F
c
F
t
F
n
F
s
F
f
N
R a
a
φ
φ
a
F
c= AS + SR
/
F
c= F
nsinφ+ F
scosφ1
F
t= OB -AB
F
t= F
ncosφ-F
ssinφ2

SolutionofMerchant’s CircleDiagram
R
R
/A
Q
B
P
L M N
F
c
F
t
F
n
F
s
F
f
N
R a
a
φ
φ
a
F
t= AL –OL
F
t= R
/
N -OL
F
t= F
fcosa-N sina 3
F
c= LM + MN
F
t= F
fsinja+ N cosa4

CalculationofForces fromMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

SolutionofMerchant’s CircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

NeedofAnalysisofForces
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

AdvantagesofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

LimitationsofMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

ConclusionsfromMerchant’sCircleDiagram
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering

HomeAssignment
followingDerivethe
different machining
force relationships
fromMerchant’sCircle
Diagramshowninthe
figure.
Dr.JayantaKr.Mahato,Asst.Prof.,MechanicalEngineering
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