FAN BLADES

ME-430 INTRODUCTION TO COMPUTER AIDED DESIGN FAN BLADES Pro/ENGINEER Wildfire 3.0 Dr Herli Surjanhata In a system window, create a new directory for fan blades under ME-430 (e.g H:\ME-430\Fan Blades) From File pull down menu, select Set Working Directory Select Working Directory dialog box appears Navigate the file system to Fan Blades directory to highlight it and select OK All files created in this session will be stored in Fan Blades directory Pick the Create a new object icon Type in blades for the name of the new part Un-check Use default template The default units of Pro/E is mmns_part_solid Type FAN BLADES in the DESCRIPTION box, and Your Name in the MODELED_BY box Click OK since the part will have mm units Click OK in the New dialog box The default datum planes appear in the graphics area CREATE HUB FOR FAN BLADES USING REVOLVED PROTRUSION Create the base feature – Pick the Revolve Tool icon In the dashboard , click Click Define Pick FRONT datum plane as Sketch Plane, accept default (Sketch Orientation Reference) and click the Sketch button Click the small forward > icon to expand, and pick Draw a vertical centerline through coordinate system Use Line tool section, and use below to draw the following section Then use to dimension the to modify the dimensions so that the resulted section is shown Click , and then to Click complete the revolved protrusion Create Rounds at Two Places Click Set the radius of round to 10 mm Pick the location as shown below to complete the Click first rounded edge To create the second rounded edge, pick the Round Tool Type mm for the radius of round Click Shell the Bottom Surface of the Hub Click on Shell Tool Enter Thickness mm Pick the bottom surface of the hub – see figure Click Pick this surface Create a Post Protrusion for Shaft Select Extrude Tool Enter 30 mm extrusion depth Click Placement -> Define Pick the surface as shown below as sketching plane For Sketch Orientation, pick RIGHT datum plane as Reference, then select Right for Orientation Pick this face as sketching plane Click Sketch Draw a 12 mm diameter circle at the center Click , and then pick Create a cut for shaft installation Select Extrusion Tool Pick to create a cut For the depth, select Thru ALL Pick Placement -> Define Pick the end face of the post as shown as sketching plane For Sketch Orientation, pick RIGHT datum plane as Reference, then select Right for Orientation Click Sketch to change the display to hidden line Draw the following section for the Click through all cut – see figure below 10 Pick this axis Pick this edge (surface) Click Close to close the References dialog box Select Create a spline curve as shown below tool to create a curve Be sure to dimension it as shown Important Note: The spline curve must be smooth, and consisted of five points Smooth curve is important in fan blade design 21 Click The extrusion above is both-side thickening – click option to change the thickening 22 Click To make the blade smaller toward the center hub, create a 15 ° draft for the blade Click Draft Tool 23 Click References to expand the dialog box Pick the right face of the blade as the draft surface Pick this face as draft surface Click the box under Draft hinges to activate the selection Pick the vertical edge of the right corner of the blade 24 Pick this edge Click the box under Pull direction to activate it Select the front face of the blade Enter 15° for draft angle Click of the draft in to change the direction 25 Click Repeat the same procedure to create the second draft on the left side of the blade Click Draft Tool The figure below shows the draft surface 26 The draft hinge is shown in the figure below 27 Next figure shows the Pull direction surface and draft angle 28 Click Create rounds at two places Click Type 20 mm as the round radius Pick the vertical edge on the RIGHT corner 29 Click Click Type 15 mm as the round radius Pick the vertical edge on the LEFT corner 30 Click 31 Pattern the Blade In the Model Tree, select the blade extrusion including drafts, and rounds Right-click and choose Group A LOCAL_GROUP is created 32 Right-click Group LOCAL_GROUP, and select Rename Change the name to BLADE Pattern the group Right-click Group BLADE and select Pattern… Select Axis option as the method for defining the pattern Pick the center axis A_2 as a Datum Axis Enter for the number of pattern members Enter 72 degree for the angle between pattern members 33 Click Assign your desired colors View -> Color and Appearance 34 35 ... file system to Fan Blades directory to highlight it and select OK All files created in this session will be stored in Fan Blades directory Pick the Create a new object icon Type in blades for the... the new part Un-check Use default template The default units of Pro/E is mmns_part_solid Type FAN BLADES in the DESCRIPTION box, and Your Name in the MODELED_BY box Click OK since the part will... OK in the New dialog box The default datum planes appear in the graphics area CREATE HUB FOR FAN BLADES USING REVOLVED PROTRUSION Create the base feature – Pick the Revolve Tool icon In the