Key Investment Casting Technical Parameters
Linear Tolerance
Dimensions (mm) |
Normal (mm) |
The Equivalent |
Premium (mm) |
The Equivalent |
||
ISO8062-3 (2007) |
VDG P690 (1990) |
ISO8062-3 (2007) |
VDG P690 (1990) |
|||
0-10 |
±0.26 |
DCTG6 |
D2 |
±0.13 |
DCTG4 |
D3 |
10-16 |
±0.27 |
DCTG6 |
D1 |
±0.14 |
DCTG4 |
D2 |
16-25 |
±0.28 |
DCTG6 |
D1 |
±0.15 |
DCTG4 |
D2 |
25-40 |
±0.32 |
DCTG6 |
D2 |
±0.23 |
DCTG5 |
D2 |
40-63 |
±0.35 |
DCTG6 |
D2 |
±0.25 |
DCTG5 |
D2 |
63-100 |
±0.55 |
DCTG7 |
D1 |
±0.39 |
DCTG6 |
D2 |
100-160 |
±0.90 |
DCTG8 |
D1 |
±0.60 |
DCTG7 |
D2 |
160-250 |
±1.40 |
DCTG9 |
D1 |
±1.00 |
DCTG8 |
D2 |
250-400 |
±2.20 |
DCTG10 |
D1 |
±1.60 |
DCTG9 |
D2 |
>400 |
±.8% |
DCTG11 |
D1 |
±0.5% |
DCTG9 |
D2 |
Size And Weight Range
Items |
Size |
Premium |
Outline Dimension (mm) |
1000×620×380 |
﹤100 |
Weight (Kg) |
0.001-80 |
0.1-1.5 |
Min.Wall Thickness (mm) |
0.5 |
5-10 |
Angle Tolerance
Angle Type |
|
 |
 |
Normal |
±1° |
±2° |
±2° |
Premium |
±0.5° |
±1° |
±1° |
Avoid the quick changes of casting structure,use fillet radius on |
 |
||
Limit Dimension For Cast Holes and Slots
Items |
Hole Dia.(mm) |
L/D |
|
Φ2-Φ3 |
L/D≤2 |
Φ4-Φ7 |
L/D≤5 |
|
≥Φ8 |
L/D≤10 |
|
 |
Φ2-Φ3 |
L/D≤1 |
Φ4-Φ7 |
L/D≤2.5 |
|
≥Φ8 |
L/D≤3.5 |
|
Deeper and more complicated holes and slots can be casted by using soluble wax cores and ceramic cores. |
||
Tolerance for Flatness, Straitness and Roundness
Dimension (mm) |
Normal |
Premium |
0-25 |
0.2 |
0.1 |
25-50 |
0.4 |
0.2 |
50-100 |
0.6 |
0.3 |
100-150 |
0.8 |
0.4 |
Surface Roughness
Rough Castings |
(Weight) >5kg Main Wall Thickness >12 mm |
Ra3.2-6.3 |
(Weight) <5kg Main Wall Thickness <12 mm |
Ra1.6-3.2 |
|
Finished Castings |
0.8-1.6 |
|
