laboratorio dureza brinell
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7/21/2019 laboratorio dureza brinell
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UNIVERSIDAD INDUSTRIAL DE SANTANDER
LABORATORIO DE MATERIALES GRUPO J3
II SEMESTRE DE 2013
PRESENTADO POR: JOHAN ENRIQUE GALLO CHACON 2112173
DIEGO ALEXANDER SEPULVEDA 2112180
LABORATORIO: DUREZA DE BRINELL FUNDICION DE HIERRO
Introduccin
La d!"#a "$ %a &!'&("dad )%da*"%+a, d" ,'$ *a+"!(a,"$ - "$+. !",a/('%ada /'% ,a !"$($+"%/(a
*"/.%(/a La d!"#a &"d" d")(%(!$" /'*' ,a !"$($+"%/(a d" % *a+"!(a, a ,a &"%"+!a/(% '
)'!*a/(% d" ",,a$ ,'/a,(#ada$ "% %a $&"!)(/(" Ca%+' *.$ &""4a $"a ,a ",,a '5+"%(da "%
/'%d(/('%"$ %'!*a,(#ada$6 *.$ d!' $"!. ", *a+"!(a, "%$a-ad' E, &"%"+!ad'! "% % "%$a-' d"
d!"#a "$ "%"!a,*"%+" %a "$)"!a6 &(!.*(d" ' /'%' "/' d" % *a+"!(a, */' *.$ d!' d", "
$" "%$a-a6 /'*' &'! ""*&,' a/"!' "%d!"/(d'6 d(a*a%+" ' /a!5!' d" +%$+"%' $(%+"!(#ad'
E, (%+"!9$ d" ,a d"+"!*(%a/(% d" ,a d!"#a "% ,'$ a/"!'$ "$+!(5a "% ,a /'!!",a/(% "($+"%+" "%+!" ,a
d!"#a - ,a !"$($+"%/(a *"/.%(/a6 $("%d' % *9+'d' d" "%$a-' *.$ "/'%*(/' - !.&(d' " ",
"%$a-' d" +!a//(%6 &'! ,' " $ $' "$+. *- "+"%d(d'
OBJETIVOS
D"+"!*(%a! ,a d!"#a B!(%",, a &a!+(! d" *9+'d' "$+ad;$+(/' - *9+'d' d" Ga$$
DATOS
L'$ da+'$ +'*ad'$ "% ", ,a5'!a+'!(' $" *"$+!a% a /'%+(%a/(%:
DATO
DATO
DATO
DATO
270 1 30? @ 3@0 13 370 1@
27@ 1 308 2 3@@ 2 37@ @
27? 1 310 11 3@? @ 37? @
278 1 31@ 1 3@8 1 380 7
280 2 31? 1 30 10 38@ @
28@ 1 320 8 3@ @ 30 2
28? 2 32@ 2 3? 8 3@ 2
288 3 32? 2 38 2 3? 1
20 2 328 1 3?0 @7 @00 1
2@ 1 330 7 3?2 2 @10 1
300 ? 33@ @ 3?@ 1? @1? 1
30@ 1 338 3 3?8 @20 1
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Mtodo de Gu!!
D" ,a +a5,a &'d"*'$ '5$"!a! ":
Da+' *.(*' d*a 3?
Da+' *;%(*' d*(% 328
Dureza presumible=dmin+DC
2 DC=dmaxdmin=68
DP=328+68
2=362kg/mm
2
328 338 348 358 368 378 3880
5
10
15
20
25
30
35
40
45
50
1
7
4 3
13
24
2
10
4
8
2
47
2
16
9
14
4 4
7
42 2 1
Frecuencia vs Datos
Datos [kg/mm]
Frecuencia [f]
G!a)(/' N' 1
S" /'%/,-" d" ,a !.)(/a - d", a,'! +"!(/' " ,a d!"#a &!"$*(5," d", a/"!' "$ d" 3?2 F**
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Mtodo E!td"!tico
e=Li[N
2 fi
fmediana]A1 Ha,,a*'$ ,a /a%+(dad d" (%+"!a,'$:
1+3.3logN=5 T"%"*'$ /(%/' (%+"!a,'$
2 A'!a /a,/,a*'$ ,a a*&,(+d d" ,'$ (%+"!a,'$:
Dispersionexperimento=
D . E=
dmayor
dmenor=
396
270=
126
A= D. E
No . Intervalos=
126
5=25
I%+"!a,'$
[270295 ) 1
[295320 ) 2?
[320345
) @2[345370 ) 103 M"d(a%a d" ,'$ da+'$
[370395 ) 37
[395420 )
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20
20
40
60
80
100
120
15
26
42
103
37
5
Frecuencia Vs. Intervalo datos
interalo de Datos
Frecuenca
G!a)(/' N' 2
e=345+[227
242
103 ]=345kg /mm
CONCLU#IONE#
La d!"#a &!"$*(5," d", a/"!' "$ d" 3?2 F**
D" ,a !.)(/a N'2 '5$"!a*'$ " ", "" d" ,a /!a "$ 3?0 F**
M" 3@ F**
La d!"#a d", a/"!' @1@0 "$ a&!'(*ada*"%+" 3?2 F**