1. Detailed description of the "Cavity Milling" dialog box: \x0d\( 1) Specify geometry \x0d\ In the cavity milling operation, there are five options in the "Geometry" tab: specify parts, specify blanks, specify inspection, specify cutting areas and specify trimming boundaries. Unlike plane machining geometry, plane milling geometry is defined by boundaries, while cavity milling is defined by boundaries, surfaces, curves and geometry. Usually, we have defined parts and geometry in the geometric view, so we only need to directly select the defined part geometry when creating operations. # p2l, u5s.w \ x0d \ a. Designated part $ I3 l$ s$ h# s/ m$ g\x0d\ In the cavity milling operation, the designated part is the shape we want to process finally, and the part defined here is a protector itself, so the tool path will not reach the geometric shape of the part during machining, otherwise it will be overcutting. In the operation of creating cavity milling, this operation has inherited the parent group relationship of geometric workpieces, so it is not necessary to specify parts in cavity milling. 0e $ g0q.f2a1SD: m \x0d\ b. In the cavity milling operation, the designated blank is the material to be cut, where the designated blank geometry itself is the material to be cut, which is actually the Boolean operation of the part geometry and the blank geometry, and the male part is reserved, and the extra difference is the cutting range. 3 U！ }4 g5 ]+ Y6 m4 {\x0d\ Figure 4-5 Cutting Range of Cavity Milling \x0d\ C. Specify the inspection body (through which we can also make some auxiliary lines and surfaces to make the tool path more reasonable) \ x0d \ Specify the inspection to define the geometry you don't want to touch, that is, avoid the position you don't want to process. For example, the fixture that holds the component, that is, the part that we can't process, needs to be defined by checking the geometry, and the overlapping area removed by the fixture will not be cut. Specify the check allowance value (cutting parameter dialog box → allowance) to control the distance between the tool and the check geometry. : f) r: l9q $ b5k2zy $ l \ x0d \ d. Specify the cutting area (generally we don't need to do the cutting area); u； v 1t & amp； N* E2 S2？ \x0d\ Specifies that the cutting area (icon) is the range used to create local machining. You can define a "cutting area" by selecting a surface area, a sheet or a face. For example, in some complicated mold processing, there are often many areas that need to be processed separately. At this point, defining the cutting area can complete the machining operation of the specified area position. When defining the cutting area, it must be noted that each member of the cutting area must be a subset of the assembly geometry. For example, if you select a face as the cutting area, you must select the face as the assembly geometry, or the face belongs to the geometry that has been selected as the assembly geometry. If you select a slice as the Cutting Area, you must also select the same slice as the Assembly Geometry; If you do not specify a cutting area, the entire defined assembly geometry (excluding areas inaccessible to tools) will be used as the cutting area. \x0d\ When the cutting area is defined, the "Extended Tool Path" tab in the [Cutting Parameters] option will work; Otherwise, this option will not work. \ x0d \ e. Specify the trimming boundary (the use of trimming boundary can make the tool path more optimized, and we need to ensure that the workpiece can be completely machined while using trimming boundary)? # p * f & amp^: Z！ D% o\x0d\ Trimming the boundary is mainly used to trim the tool path you don't want. 3 p 1 f % ~ % n * q $ R/y8 \； A- l/ R\x0d\2。 Introduction of cutting layer: \x0d\ Cutting layer is mainly used to control the depth of machining model; In the cavity milling operation, the cutting layer will be activated only when "Part Geometry" is defined, otherwise this option will have no effect and will be displayed in a gray state. In the cavity milling operation dialog box → tool path setting → cutting layer, click the cutting layer icon to pop up the cutting layer dialog box, and the cutting layer is also displayed in the model. \x0d\ \x0d\ Range types are divided into three types: auto-generated, user-defined and single. 0 z4 [！ A: c, b * i4 ~ \ x0d \ a. Automatically generate # P: c+ r! F3 q\x0d\ Setting range is aligned with any horizontal plane. d0 {； j2 r0 }9 L 1？ 8 g\x0d\ As long as the local range is not added or modified, the cutting layer will remain relevant to the part. The software will detect the new horizontal surface on the component and add a key layer to match it. \x0d\ b. User-defined \ x0d \ Create regions by defining the bottom surface of each new region. 1 F* u！ K l+ i\x0d\ The range defined by selecting faces will remain part-related. But no new horizontal surface will be detected. % c0d7b-h% c8l \ x0d \ C. Single 7? & ampw，_ 2b 7 ~ 4n； Y\x0d\ will set the cutting range according to the part and blank geometry. ^6 p * ^' j & amp； r(x ' B； C\x0d\ Flexible use of cutting layers can optimize the following aspects: \x0d\ 1. Rough cutting: When cutting deep cavities, we can define cutting paths with layers at first, rough cutting with short knives, and subsequent layer control with long knives. (This is conducive to the rational use of tools in the machining process. If long knives are used for rough machining, tool bounce may be more serious, which is not conducive to machining. )4b3c+q+x+/f8k7e (s \ x0d \ 2。 When machining some workpieces, we don't need to calculate too many layers, but within a certain range, which can shorten the calculation time of tool path.