(3)倒圆角：

2、零件模具CAD

模具材料选用718模具钢，精度选择7级精度。 （1） 凸模

k=2% δ=0.2 L凸=174mm D凸=114mm H凸=57mm l凸=[L凸(1+k)+(3/4)△]- δ

=[174×(1+0.02)+0.75×1.4]-1.4/6

=178.53-0.23

d凸=[D凸(1+k)+(3/4)△]- δ

=[114×(1+0.02)+0.75×1.0]-1.0/6

=117.03-0.17

h凸=[H凸(1+k)+(2/3)△]- δ

=[57×(1+0.02)+2/3×0.64]-0.64/5

=58.567-0.128 模具样图如下：

（2） 凹模

k=2% δ=1/6 L凹1=180mm L凹2=192mm D凹1=120mm D凹2=132mm H凹=60mm

l凹1=[L凹1(1+k)-(3/4)△]+δ

=[180×(1+0.02)-0.75×1.5]+1.5/6

=182.475+0.25

l凹2=[L凹2(1+k)-(3/4)△]+δ

=[192×(1+0.02)-0.75×1.5]+1.5/6

=194.715+0.25

d凹1=[D凹1(1+k)-(3/4)△]+δ

=[120×(1+0.02)-0.75×1.1]+1.1/6

=121.575+0.18

d凹2=[D凹2(1+k)-(3/4)△]+δ

=[132×(1+0.02)-0.75×1.1]+1.1/6

=133.815+0.18

h凹=[H凹(1+k)-(2/3)△]+δ

=[60×(1+0.02)-2/3×0.64]+0.64/6

=60.773+0.11

模具样图如下：

（二） 模具CAE（ANSYS模具结构分析）

步骤： 1.1进入ANSYS 1.2设置计算类型

ANSYS Main Menu: Preferences… →select Structural → OK

1.3选择单元类型

ANSYS Main Menu: Preprocessor →Element Type→Add/Edit/Delete →Add →select Solid Quad brouw 8node 92 →OK (back to Element Types window) → Options… →select K3: Axisymmetric →OK→Close (the Element Type window)

1.4定义材料参数

ANSYS Main Menu: Preprocessor →Material Props →Material Models →

Structural →Linear →Elastic →Isotropic →input EX:2e11, PRXY:0.3 → OK

1.5生成几何模型

用ANSYS导入功能，直接导入已存的*igs格式文件，导入后如图显示

1.6网格划分

ANSYS Main Menu: Preprocessor →Meshing →Mesh Tool→(Size Controls)Areas set:拾取面→OK→ back to the mesh tool window)Mesh: Areas, Shape: Quad, Mapped →Mesh →Pick All (in Picking Menu) → Close( the Mesh Tool window)划分后如图