Properties of composite materials based on transition metal aluminides

Properties of composite materials based on transition metal aluminides

(&-many 1. The ability of PM nrt~tho(ls need for machining tc sut.h threads and undercuts. accurate dimensions finish was discussed. IO Imlit asprc.t...

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(&-many 1. The ability of PM nrt~tho(ls need for machining tc sut.h threads and undercuts. accurate dimensions finish was discussed.

IO Imlit asprc.ts

att.ainmrnt and good ‘PI-ocessrs

the as

of very surface and the

EVALUATION OF MACHINABILITY OF PM MATERL4L.S WITH HIGH GREEN STRENGTH S.11. I 2uk %1‘. (‘imino Riverton. N?w .Irrsey,

(Iloeganars

t orp.

I ‘SA).

ability to machines I’M materials wert’ outlined, 1001 matcxrials an
regard

t.o surfac,t,

tcbchniqurs,

such

in-process

rffe4.t s. Somts

novel

spt~e~i cutting

and

as high

w
monitoring.

MACHINABILITY

OF I’M STEELS

EVALITATION Additivrs, of

PM

to lmpro\r

steels,

additives

wertl

on

the* mac.hinabilit,y rtavica\vrri.

sintt~r~~d

machinahilib

WC*IY

in drilling

MACHINING - TOOLS AND CONDITIONS t;. Abbott Amrrira commonly

used

speed

tlt~scribed. ‘I’br gro\vitlfi

MATERIALS

ljarts

arid

sirrtcbrcd anti

turning

mat.c~rials

carbidta firlish

of with

tools

was

Efft:cts 01’ S on machining

described. Tool life, surface

WCIP

this

in

IN

OF PARTS

1j.S. Madan (Elkem klt?als I’ennysylavania. ll!iA ) Machining,

t o, f’lttsburg,

as air ~nlc’gra~ stag,>.

production

of slntcarc*cl parts

was

and

sintc~rc~tl

‘I’hc oh,jcrtivcl

of thr

siatistic’al

ivt’h

paper

10

wt’rt’

c~i1l\anc7~ olrt II~IwI.

was to prc,l~~,sc a

mt’t Irc~d

01

ing

rvalriat

ma~hinabilit) rxl)c~rit~nct~ Iiaving shown that slat ist ii,s arc> roqllirccl ttr ;t\-oiti subjrc’tivity

in assrssrnrnts.

was

discusstad machining

tht,

t~cscd to

was

c~mphasizrd.

selection Machinability factors

of

were

I’M

parts

c~onsitlc~rt~tl

It

character3stic.s

;tlr~ti

and

witli

Intermetallic

was

ORDERING DURING HEAT

.4ND DISORDERING

MECHANICAL

TREATMENT

I Ins c,ffects

to

of (‘II

i n I’i It 1.21t i I) I. I’llarlgt~s i 11 ructurr ant1 i~~l~~c.tioir of cutting

materials.

(;. K~,iirni~rshlrc.hc,ir,

STRESS

MACHINED

Apl)lic2tic~~i

MEASIIREMENT

IN

PM STEEL

ilr

rtbgarcl

10 lJrol)(~rlic~~ aiitl

ac~r0sljac.r~

111

were

use

of addit&s

The

11s~ of

other

resin

I(6

strt’sstss ~~xpcrimc~nt

to

imprc~gnat

for anal was

ion

to

in

\*ith

lo\+ (It-tisltv.

I,OM

1trc* 51i1lrrlatt ic.t

r‘t,c.tiI> this

aiiti

I)y alloying

and

two phastb

altoy

\,‘,‘I‘(’

raiigcs with

bascld

mc~c~hanic.all~

stability order

rcsspcc’t

on Ti l(iat’:,Al

10

thrt

equilibritim

and

‘l31,

long

ua:,

nlilling

from

I Irv

(lcst(‘i inlncd

lime.

statlility was in\~t~stigait~d t rallsfornicd at 400 500 t’. ~~ompositiotl.

all~~yc~l

investigated.

l)aranlc~tc~r

(~omparccl. prcbdic?

ion

of

agrI-r~t~lrlc’llt

rc~p~rt tscl

sterls

Models

were

residual with

REACTIVE OF NICKEL

‘l‘lrc~rmal

and alloys ac.c.ortling to

Ill(‘tilStat)l(’

hiAt>

phast~. HOT ISOSTATIC SILI(:IDE

ii

I’Xr

c,~irl\cntionall?

rt’s111 imprt~gnatcd

good

tcihcsd

clisclissc-tl

was

\titlrc’ c)titlrnrXd. TiAl, Tr,,Al and

Phi

seal

)_

ar~cl Ti.,Al

l)rocessing

l.ht,

ol’

rcbgartl

rc~l)r~rtl~d 1~2 improvc~ also. K~~sid11a1 stresses

fac’torh anal

statistically

drveloped

~ll;i~lllll1n~

with

to ~*nlrailc~t~ mac+~inahility.

porosity wa5 machinability proc’tlsstld

illfb

discussthct

cl~.t, 10

altrinl)ls

O.“‘Y>sl

Problems

(;erniany

01’ TiAl

allo,ys

t ht~rmal steels

AND

t;. l~‘ron~n~t~~t~i~(Max

1’lanc.k Iilht., I hisst~hlort;

tlric~tilily. RESIDUAL

ALLOYING

OF ALUMINIDES

critical

rcsgard

0 I’ rcbsi n micro9

materials

design

that thr\ mav aid niatc~rials a1 t ht> pt‘c prodtlc? ioii stagy.

suggested

part

anal

EURO PMW. The abstracts which follow are of papers which were presented at the European Conference on Advanced PM Materials which was held in Birmingham, IJK. in October 19!k?.

in the

need to undt~rstantl proc.tbsses and t hr machinability of sint rrttd niatrrials

were

addit matr~rials

(II’ I’51

afl‘tA(,t ing

rcaviewcd.

The

and

Fac,tors

a11d cost.s

OF MACH INABILITY

PROCESSING

tool

nrc~tl for mac,hining

tlotcd

considerrd

IMPORTANCE

for

was

nia~hinabiliiy

IIIIIII~I~

stet‘l

presented. were

of

?t ut. (Kotwlc~r~\lt’tal l’owdt~~. ot Indiana. I ISA )

on drilling.

OF

and

Inc, Seymour.

Data high

Wft~cts

l)rol)t’rtit,s

OF MAC:HINABILITY

PM STEELS

PRESSING

to