Dake Model Cut 250 - Manual (Page 9)

9
CUT 250 CUT 250 CUT 250 CUT 250 CUT 250
9.1 - Definition of materials
The table at the foot of the page lists the characteristics of the
materials to be cut, so as to choose the right tool to use.
TYPES OF STEEL CHARACTERISTICS
USE
I
UNI
D
DIN
F
AF NOR
GB
SB
USA
AISI-SAE
Hardness
BRINELL
HB
Hardness
ROCKWELL
HRB
R=N/mm2
Construction
steels
Fe360
Fe430
Fe510 St37
St44
St52 E24
E28
E36 ----
43
50
----
----
---- 116
148
180 67
80
88 360ч480
430ч560
510ч660
Carbon
steels
C20
C40
C50
C60 CK20
CK40
CK50
CK60 XC20
XC42H1
----
XC55
060 A 20
060 A 40
----
060 A 62
1020
1040
1050
1060 198
198
202
202 93
93
94
94 540ч690
700ч840
760ч900
830ч980
Spring steels
50CrV4
60SiCr8
50CrV4
60SiCr7
50CV4
----
735 A 50
----
6150
9262 207
224 95
98 1140ч1330
1220ч1400
Alloyed steels for
hardening and
tempering and for
nitriding
35CrMo4
39NiCrMo4
41CrAlMo7
34CrMo4
36CrNiMo4
41CrAlMo7
35CD4
39NCD4
40CADG12
708 A 37
----
905 M 39
4135
9840
----
220
228
232 98
99
100
780ч930
880ч1080
930ч1130
Alloyed
casehardening
steels
18NiCrMo7
20NiCrMo2
----
21NiCrMo2
20NCD7
20NCD2
En 325
805 H 20
4320
4315
232
224
100
98
760ч1030
690ч980
Steel for
bearings
100Cr6 100Cr6 100C6 534 A 99 52100 207 95 690÷980
Tool steel
52NiCrMoKU
C100KU
X210Cr13KU
58SiMo8KU
56NiCrMoV7
C100W1
X210Cr12
----
----
----
Z200C12
Y60SC7
----
BS 1
BD2 - BD3
----
----
S-1
D6 - D3
S5
244
212
252
244 102
96
103
102
800ч1030
710ч980
820ч1060
800ч1030
Stainless
steel
X12Cr13
X5CrNi1810
X8CrNi1910
X8CrNiMo1713
4001
4301
----
4401
----
Z5CN18.09
----
Z6CDN17.12
----
304 C 12
----
316 S 16
410
304
----
316
202
202
202
202 94
94
94
94 670ч885
590ч685
540ч685
490ч685
Copper alloys
Special brass
Bronze
Aluminium copper alloy G-CuAl11Fe4Ni4 UNI 5275
Special manganese/silicon brass G-CuZn36Si1Pb1 UNI5038
Manganese bronze SAE43 - SAE430
Phosphor bronze G-CuSn12 UNI 7013/2a 220
140
120
100 98
77
69
56,5
620ч685
375ч440
320ч410
265ч314
Cast iron
Gray pig iron G25
Spheroidal graphite cast iron GS600
Malleable cast iron W40-05 212
232
222 96
100
98
245
600
420
9.2 - Choosing the disk
First of all the pitch of the teeth must be chosen, suitable for the
material to be cut, according to these criteria:
- parts with a thin and/or variable section such as profiles, pipes
and plate, need close toothing, so that the number of teeth
used simultaneously in cutting is from 3 to 6;
- parts with large transverse sections and solid sections need
widely spaced toothing to allow for the greater volume of the
shavings and better tooth penetration;
- parts made of soft material or plastic (light alloys, mild bronze,
teflon, wood, etc.) also require widely spaced toothing.
MATERIAL
CLASSIFICATION AND
CHOICE OF TOOL
9
Since the aim is to obtain excellent cutting quality, the various
parameters such as hardness of the material, shape and
thickness, transverse cutting section of the part to be
cut, choice of the type of cutting disk, cutting speed and
con-trol of head descent, must be suitably combined.These
spe-cifications must therefore be harmoniously combined
in a single operating condition according to practical consi-
dera-tions and common sense, so as to achieve an optimum
condi-tion that does not require countless operations to
prepare the machine when there are many variations in the
job to be performed.The various problems that crop up from
time to ti-me will be solved more easily if the operator has a
good know-ledge of these specifications.
WE THEREFORE ADVISE YOU ALWAYS TO CHOOSE
ORIGINAL SPARE DISKS THAT GUARANTEE SUPERIOR
QUALITY AND PERFORMANCE.
8.6 - Oil disposal
The disposal of these products is controlled by strict regulations.
Please see the Chapter on “Machine dimensions - Transport
- Installation” in the section on
Dismantling.
8.7 - Special maintenance
Special maintenance operations must be carried out by skilled
personnel. However, we advise contacting THOMAS or their
dealer and/or importer. The term special maintenance also
covers the resetting of protection and safety equipment and
devices.