Week 10 - Challenge 2- Attachment Feature Creation (Dog House)

Week 10 - Challenge 2- Attachment Feature Creation (Dog House)

Aim:

              To Design of Dog House for the Door Trim following the design rules Performing draft analysis on the final component

Tooling Axis

            To create a tooling axis using a Class A surface, first examine the surface patches along the X-axis to identify the appropriate direction for tooling. Place a reference point at the midpoint of the surface curve and then draw the tooling axis line using the "Point Direction" line type from this point. This line will represent the tooling direction.

Draft Analysis

To perform draft analysis, click Insert > Analysis > Feature Draft Analysis. Open the Draft Analysis toolbar, go to the display block, and select Analysis under the Running Point to check angles on the Class A surface. The color scale indicates if the draft angle meets the 3-degree requirement using colors green, blue, and red. After analysis, align and fix the compass to the tooling axis by selecting Use the Compass to Define the New Current Draft Direction in the Direction block, aligning the compass with the tooling axis, and clicking the lock symbol. Finally, click OK on the Draft Analysis toolbar to complete the process.                 

For a dog house, you need to create separate tooling axes to accommodate different parts of the mold. Establish the dog house tooling axis specifically for the dog house feature, ensuring it aligns with the dog house geometry and its integration into the main part. Additionally, create a side core tooling axis to handle the side cores, . By having distinct tooling axes, you ensure accurate and efficient molding for both the dog house and side core components.

Creating Class B Surface:

 To create a Class B surface from Class A surfaces, first extract the Class A surfaces and untrim them to their full extent. Ensure proper intersections by using extrapolation as needed, then trim and offset the surfaces by 2.5 mm to achieve the desired thickness. Place the trimmed surfaces into a new geometrical set and name it accordingly. Apply fillets to the edges, adjusting the component thickness if necessary to maintain uniformity. Finally, review and refine the geometry to ensure all surfaces meet design specifications and requirements.

Creating Class C Surface:

To generate the Class C surface, start by using the Class A and Class B surfaces as references, where the Class C surface will define the thickness between them. In the Surface Workbench, utilize the Sweep command to create the Class C surface. Select the boundary of the Class A surface as the profile and align the sweep along the tooling axis, setting a draft angle of 3 degrees. This draft angle should be applied to the sweep, and if necessary, use it to create any holes required by the design. Once the Class C surface is swept, join it with the Class A surface to ensure a continuous and smooth connection. Following this, trim the Class B surface with the Class C surface to refine the overall geometry of the part. Finally, use the boundary command to check and confirm the alignment and precision of the surfaces, ensuring that the Class C surface is well-integrated and meets quality standards.

Dog house

A dog house is an engineering feature designed to position components at precise heights and address plastic defects during assembly. It is crucial to adhere to the specific design details provided in your resources, including the master section or engineering drawings, to ensure accurate placement and effective resolution of potential issues. Following these guidelines helps in maintaining the integrity of Class-A surfaces and ensuring proper component alignment.