In the process of mechanical design, those areas should be designed as fillet and when to design chamfer. These materials can be found in those places, and the title of the book is also OK. Thank you!
Fillet is generally cast out, chamfering is generally processed out.In order to eliminate stress concentration, a cylindrical part needs to be rounded in order to eliminate the stress concentration.In general, the outer circle, the inner hole and the threaded orifice need chamfering, some are the process requirements, some are assembly requirements (for example, you don't chamfer the parts, especially the smaller ones)...The old saying upstairs is what I want to say. I hit half and found it was called back
Chamfering and roundingIn order to facilitate assembly and operation safety, the shaft ends and holes are usually made into a small cone to remove sharp edges and burrs. This cone is called chamfer.The size of the chamfer can be checked by the standard GB6403.4-86. Generally, the larger the axle diameter and the aperture, the greater the axial size of the chamfer.For the shafts and holes of the ladder, in order to avoid cracks due to stress concentration, the larger parts of the force are often transferred at the shoulder of the shaft and the fillet of Kong Jian, which is called the reverse circle.See: "mechanical design manual" (Third Edition), the first volume, the fifth chapter, parts cold processing, design, process and structural factors
Generally more chamfering, mainly to reduce stress concentration, easy assembly, easy to match the relative movement of parts. Most are inverted x 45 degrees, and in some places, if you want to pass O ring and some seals, it can be inverted to * 20 degrees /30 degrees angle. The fillet is much less Oh, you have to consider is mainly matched with the corresponding, both in the process of relative motion, if you feel there are steps can cause some problems such as stuck, with a smooth transition, it is better to fillet!In fact, the chamfering or rounding is mainly needed!
The edges of the non machined surfaces of various castings shall be designed as arc R, and the sharp edge of the lathe shall be chamfered 45 degrees. These are in the design manual, you are new, and when you are free, look at the design manual.
