Confirmation of wall thickness and minimum wall thickness machining allowance
Date:2024-08-02 Categories:Blog Views:364
| Area at wall thickness, mm² | ~2500 | 2500~10000 | 10 000~ 50 000 | 50,000 |
| Minimum wall thickness, mm | 0.7 | 1.0 | 1.5 | 2.2 |
| Common wall thickness, mm | 2.0 | 2.5 | 3.0 | 3.5 |
1. Casting rounded corners
The minimum radius of casting fillet of die casting is 0.3mm, and the recommended radius is 0.5mm.2. Machining allowance
2.1 Die casting requirements of the machining allowance applies to the entire gross bad parts, that is, all the surfaces to be machined only a value, and the value of the final machining of the finished product after the maximum contour size to determine the
The maximum size of a part of a die casting in the as-cast condition shall not exceed the sum of the finished size and the required machining allowance and the total casting tolerance (see Figure 2). When skew is used, the skew shall be considered separately.
2.2 Required machining allowances
The code of the required machining allowance is RMA, and its machining allowance level is selected as B~C level in GB/T6414. The required machining allowance is given in Table 12.
