After reviewing the request by Haiyu to modify the design of the Nose Casting to incorporate the webs on the inside of the box area of the casting we find that it is exceptable with the following exception. Following Haiyu’s design adding the two webs creates two pockets that will trap rain water. In order to have the webs added, there will need to be a way for the rain water to escape the casting, as shown in the attached drawing. 看了海宇内部加两根筋的设计, 我们认为不可接受。 如果加筋的话, 就会产生接住雨水的篼。 如果要加筋就要想办法放出去雨水。如图所示。
I realize that the addition of the drain cutouts defeats the ability to have these webs help feed the thicker area of the casting, however, it will need to be there.
The only other relief would be to have the foundry product the tooling similar to the design.
Please review this with the foundry and get back to me with your thoughts.
Many Thanks.