Week 9 - Attachment Feature Creation - Challenge 2
DOOR TRIM :
AIM :
To be able to create Door Trim Part using the surface modeling. To perform the Draft Analysis on Part and Dog house.
DESCRIPTION :
ATTACHMENT FEATURE:
Attaachment feature are B-siside Features. which help fitting and improve strength with out increase material thickness. avoid the shink marks on the part wile manufacturing.
DOGHOUSE :
Doghouse is a Attachment feature B-side in engineering used in plastic trim design. Dog houses are used as supporting feature. Sometimes other engineering features like snaps; locators etc. are mounded on them to increase their strength. Dog houses are subjected to draft analysis to prevent breakage of the component during ejection from mould cavity. Dog house and other engineering components are built on B-surface.
Dog houses are subjected to draft analysis to prevent breakage of the component during ejection from mould cavity. Dog house and other
engineering components are built on B-surface.
SIDE CORE :
In addition to the added complexity of the mold structure, adding any of these features will significantly increase the cost of the mold (and the cost of the product), not to mention the additional space each mold component takes up, compared to a simple mold design without side cores.
PORCEDURE :
1.CLASS A SURFACE:
Define and verify Calss a surface. surface is closed are not any open boundarys are there
2. TOOLING AXIS :
The Tooling Direction is basically the direction that the mold pulls a part. The mold is built in two separate pieces, basically. You have a Cavity side and you have the Core side. The Core pulls apart from the Cavity and that's the Mold line or the Tooling
To crearte tollindg axis select point on the surface draw line perpendicular to surface.
3. B-SURFACE :
To create B-SURFACE offset the CLASS A SURFACE 2.5mm insde. Add the missing surfaces in B-surface which are in in the Class A Surfacce with using the sweep, Multi surface, Blend, join, fillet, split, trim and offset etc. Extrapolate all edge the surface 5mm so cna avode the gap.
Verify the B-SURFACE no gap marks in the surface.
4. C-SURFACE :
To create the C-surface use CLASS A SURFACE Outer Edge with Sweep feature along line command referance of class A surface 3° angel outer.
5. FINAL SURFACE:
Join the CLASS A SURFACE wirh C-Surface and Finally Trim with B-surface.
Verify the all Boundary are closed are not.
6. PART BODY:
Create solid Model from Closed surface. and add the part body in the main body solid feature
SIDE CORE TOOLING AXIS :
To Create Side Core tool axis to draw perpenducular to side core lifting a part
ATTACHMENT FEAATURE :
DOG HOUSE :
1. To be Create dog select the Positioned with referance point and draw Square. Multiple Extract the sketch.
2. Sweep the Multiple extract referance with tooling axis and expapol the sweep edges top.
3. Trim the Extrapol sweep surface with offseted Fill surface.
4. Open Part modeling thick surface and give edge fillete 3mm raidius on outside Edges.
5. Give edge fillete inside 1mm radius.
6. Create a Inside surface by using offset the dog house surface 1 mm to out side and heght should be 3 to 6mm an wall thickness must be 0.4 tomes of thickness of body.
7. Split the surface with dog hose thick surface and give draft edge fillete.
BODY ASEEMBLY :
Add the Dog house body with main Body.
DRAFT ANALYSIS :
We Perform Two Draft analysis in this part one main tooling axis and other Side Core Draft analysis.
The Draft Analysis command enables you to detect if the part you drafted will be easily removed. This type of analysis is performed based on color ranges identifying zones on the analyzed element where the deviation from the draft direction at any point, corresponds to specified values.
To perform draft analysis select advanced Draft analysis select the tooling axis. Done Draft analysi in this step Main body and Sidecore Outer Body.
Side Core Draft analysis :
In side Core draft analysis we analysize the side core lifet axis.
To perform Draft analysis for side core select side core tooling axis. we perform Draft analysis inside core.
TREE STRUCTURE :
