Automated magnetic particle inspector released

Wakefield converts door hinge to PM

Major upgrade State PM lab THE powder metallurgy (PM) laboratory at The Pennsylva-

of the images into threedimensional reconstructions

nia State

of pores,

University

going

major

upgrades. been

is under-

equipment

Two

made

Science

awards

by the

Foundation

from

the

Office

Research, from

have

various

has been

converted

to PM from sand

A DOOR hmge for an institutional

food steamer

redesigned

a

machined

sand

net

powder

shape

(PM)

part

casting

Corp.

together

proved cosmetic The

to

large

a

tapping

in a cost

in

with

has also introduced

im-

perature

stainless

its

plant.

152.4

mm,

is easily

0.125

mm

maximum

lity of a cam

and

tolerances

that it produces.

radii

hinge’s

rear

produced

produced

0.3

mm.

The

recesses

are

also

net shape,

to toler-

furnace

improve

high temcapability

An early

with

new

finish. Corp, based

sintering

34.925

to within

x

and

Massachusetts,

part,

held

x 31.75

holes

hole

The con-

Wakefield,

the

cored

through

steel

corner

are limited

of three

one

use

has

to

of its

been

the density

to

and ducti-

coupler

lab, based

handle

The Wakefield Carp; tel. + l-61 7-245-1828; jii: + l-61 7-245-3598.

matching univer-

in University

system for non-

destructively

detecting

mag-

netic particles

in metallic

com-

ponents

has been developed

Contest

of astersund,

Sweden.

An ‘APMI’ unit here) has recently stalled

by Scania

automatic

(pictured been inin

a fully

line for the produc-

tion of steering safety critical

knuckles.

As a

part, it is essen-

tial that these components crack-free.

by

Test pieces

are

are col-

ing knuckle

Each steer-

is wetted,

magne-

tized and sprayed with powder from a specially zle. After optical laser

designed

draining, cylinder

light

directs

onto

nent, which

noz-

a rotating the

UV

compo-

is fixed while the

cylinder rotates and scans the test surface. The optical signals are

processed

rejected

Magnetic tion

is

with particle

a widely

destructive

out

powder that

part

inspec-

used

nonUntil

of the iron has been car-

manually, specially

it fluoresces

As leading

furnace

with

the

treated

so

in UV light.

The monotonous nature of manual inspection, however, has meant that defective parts are still occasionally missed. Contest says the machine frees operators from an arduous and unpleasant task.

Contest AB; tel: +46-f% 51.7720; fa: + 4663.13-30. 22.

lographic ities

include

band saw, diamond cut-off

and abra-

wheels,

press,

sample

digital

tortion

and shrinkage

in situ

ing,

latile

gas analysis

species.

for

of vo-

This new system

complements

the existing

tiple zone pusher

mul-

furnace

tensile

testing,

with

A second a substantial

moulding

of

sintered The

of

a

micro-

system

high

con-

resolution

testimpact

a

upgrades

10 tonnes

analyser,

rifflers

sampling

and

in-

injection

machine, size analyser, time of flight

particle powder

press

tool-

of tensile,

rupture and Chartest geometries.

Additional clude

tar-

hard-

and appropriate

1650’ C capabilities. award will allow upgrade in me-

testing,

ing for compaction transverse py impact

the facil-

ness and microhardness

determination

this

a diamond

of dis-

residual

to

preparat,ion

that

for assessment

chemical

sin-

full metal-

system and

and

on

capability,

PM lab has added

mounting

imaging

curves

edge

furnace

a video

of hard-

modulus

supplements

sive

is

being point-

situ

structures.

or inert atmospheres. Included with the computer controlled

for

laser dry size

powder

compaction

computerization

for

optical

metallograph,

video

moulding pressure and e.jection stroke measurements

imaging

system,

analy-

durin,g compaction.

image

sis workstation

computer

serial

sectioning

This

combination

quantification tures

and

micromill. allows

of microstruc-

and computer

assembly

Prqfc.ssor Randall M. Gwman, PM Lab, Tke Pennsylvania State University; tel: f /-X14-863-8025; fa.c: +-1 814-863-8211.

Thermal spray information on CD-ROM INFORMATION

published

on thermal spray applications and developments during is

test method.

now, detection powder marks ried

the

if a fault is detected.

assessment

elastic

Park,

system for operation to 1900°C in vacuum, hydrogen, nitrogen

sists

fixture.

to point

tered

Finally, is

for in

is a high

sintering

structures.

lected by a robot and placed on a rotatable

USA,

temperature

analysis

AN automated

for the

two-di-

images.

purchased ness,

phases

to extra-

from

an nanoindenter

one

Naval

Lallographic capabilities geting three-dimensional

Automated magnetic particle inspector released

features

and

addition

Pennsylvania,

Sec-

impregnation,

buffing to a satin The Wakefield

appearance. 316

machining.

operations

plastic

and

maker

without

ondary to

metallurgy

has resulted

reduction,

been

heavily

by US part

The Wakefield version

has

from

ante,

casting.

polate

and

having

stress-strain

One major for a food steamer

than

mensional

sity sources. hinge

grains

rather

National of

with

monies

This door

for Penn

the now

past

five

available

years on

‘SearchMore Thermal CD-ROM from Materials mation,

a joint

International

the Spray’ Infor-

of

selected

at $495/&295.

full

from

papers

Journal of Thwmal Spray Techvmlogy, Advanced Materials and Processes, Metallurgical/Materials Transactions

service of ASM

and ASM thermal ference To

the

Insti-

Derived from Metadex Materials

spray

and

Therrnal

must have at least 4S6/25 or compatible

tains more than 3000 abstracts of articles taken from journals, conference proceedings and in excess of 200 patent citations focusing on wire, arc, flame, plasma and other forms of spray coating.

con-

proceedings. use the SearchMore

Ab-

stracts. the CD is the first in a series of titles covering metals and materials technology. The SearchMore CD con-

are

the

and

tute of Materials. Engineered

It is priced Images

Spray

CD,

users an IBM CD with

a double :speed CD-ROM drive, 4 MB of RAM and 20 MB of free .hard disk space, and preferable a COlOUr monitor.

A.YM tel: ext. 4634;

International;

+ l-21 620;

6-338-5151,

f&z:

I- l-216-338-

The Institute

c(f Mater-

te1: +44-171-839-4071; ,far: i- 44 171-839-2289. aLs;

MPR July/August

1995

3