Binder / Lubricants in Green Machining

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Proceedings of the 2007 International Conference on Powder Metallurgy and

Particlate Materials, 2007-05-16

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Binder / Lubricants in Green Machining

Robert-Perron, Etienne; Blais, Carl; Pelletier, Sylvain; Thomas, Yannig

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Binder

_I

Lubricants in Green Machining

Etienne

Robert-Pmnx,

Carl

Blaisw

,

Sylvain Pelletier", Y'annig

ThomasD

"

D-nt

of

Idinin&

Metallurgical

and

Marerials Engineering, Uniusrsitd Laval,

Quebec City,

QC,

Canada.

'

Powder

Forming

Research

Group, Industrial Materials Institute -National Research

Council

of

Canadq

Bouchewille,

QC,

Caaitda.

ABSTRACT

The green

machining

p r o m

is an

alternative

route

fbr

solving

the poor

machining

behavior

typically

associated with sinter-hardened

PM

components.

The

main

advantages

with

green

ma&nhg are extended

cutting

tool

life

and

increme:d

prodwtivity

md

possibly

cost

reduction on

a d

machining &r

ainterhg.

Important

aspem such

as

tool selection and

cuttingpmmetew

must

be

optimized

tp

obtain

f d

components

with

good

geometrical canformme.

Sa

k,

high .green

strength

has been

associated

with

improved

green nWhinability. However,

this

_assumption

_is

_not

_always

true

and

may

sometimes

lead

ta

the development

of

high green

strength compomts

with low

green

machinability

.

This

pager

highlights

the

role

~f

binder

/

lubricmts

in

green faachiaing for

prducihg

high

qualitjl

wmporn@s,

R e s u b

show that

l u ~ c a ~ g

properties

of

binder

/

lubricmts significm#ly affects

the

machinability

of

green

P M

c~mponents,

KE:WORD§

Powder

metallurgy,

Gwen maclhining Die

wall

lubrication,

Green smngtb,

Binder,

Lubricant