Week 9 - Challenge 3 - Bumper

REPORT

Once we get the CAD file check the quality visually or by using boundary tool
TOOLING AXIS

• Lets create a tooling axis using point and direction method
• Initially take the cad file in a an axis where all the edges are visible
• lets extract the flat surfaec of the number plate create a point and then create a line
• Then check for draft analysis from insert menu
• Provide a miniumum draft of 3 degree, check whether the CLASS A is clearing or not
• So it is clearing so it is not a dummy tooling axis anymore , lets publish this as tooling axis

CREATION OF CLASS B

• Here we are going for Direct offset method instead extract and extrabolation
• create a geometrical set under construction as parent
• After offseting class A by 3mm we ll get a class B with missing fillets
• We are going to create 3 fillets one by one
• Before that we have to remove existing fillets using join (Sub elements to remove) and create from start to end
• After selecting all the fillets the ''check connectivivty'' in parameter shouls be unticked
• Here the surface is single now again we need to split the surface using multiple extract with point continuity
• Now all the surfaces are individually seperated
• Insert a new geometrical set patch 1 in class B
• Hide the join and 2 multi extract
• Now lets extrapolate 2 multiple extract surface
• Dont extrapolate from all the sides
• For doing the extrapolation we need boundaries use boundary option
• After extrapolation trim the surfaces and once we get the sharp edge measeure the fillet drom class B and provide the edge fillet 3.5mm
• Patch 1 is completed
• Create a geometricsl set under class B and name it as patch2
• Add tghe nect multiple extract and create the boundaries
• Extrapolate and trim
• Measure the fillets , if not getting use extract the perticular surface and create a pont and create a circle and measure the radius
• Radius = 1.3mm
• patch 2 is completed
• PATCH 3
• Create a geometricsl set under class B
• IF Ww try extraplotae it wont happen because of the shape of the surface
• splut the multiple extact using 2 multiple extarct (4+1 surafces)
• Extract the sharp edge surfaces
• untrim it to a rectangualr surfaces
• after extrapolating try to join (check connectivity ticked)
• use the intersection to find the overlapping
• Split the surfaces
• Join and split the extra surfaces using the zx plane
• Measure the fillet radi And provide the filletC SURFACE
• Create a gemoetrucal set under construction and name it as class C
• There are 9 edges havingtangential continuity So provide sweep
• Create a sweep single sweep is not possible beacuse fo the complex shape
• There are 3 surfaces created in parallel to tooling axis so provide 3 degree draft
• Create the boundary and then sweep3
• Make sure that the 3 ticks are checked in the bottom of the sweep ttol
• Finally 9 sweep is completed
• There is some extrapolation to do b/w 3 degree surface and 90 degree and b/w 3 and 3 surface
• After that do the trim
• Now join the trim with the other sweeps in to single sweep without the middle circular sweep

CREATION OF A+C SURFACE

• Create a geometrical set under construction
• Join the previous join , middle circular seep, and A surface with a merging distance of 0.003 mm
• FINAL TRIM
• Check whether B surface is intersecting with A+C , if not extrapolate B
• we havent got the intersection so create a geometrical set under class B
• Extrapolate each surfaces seperstely
• Dont go for boundaries a nd the extrapoltaion do it alternatively
• After extrapolation publish extrapolation B surafece
• NOW insert a new geometrical set final trim and trim A+C suraface with B

CLOSED SURFACE

After getting final trim change the workbench to part design and insert a part body
use the closed surface to create a closed component
DRAFT ANALYSIS FOR CLOSED COMPONENT

Open the draft analysis and use the compass and select inthe surface check whether class A and C is clearing if not reduce the value upto 2.8
publish the bumber solid