1 / 9

Schedule

Responsible: B. Kearns Status Date : 9/7/12 Approved by: S. Przybelinski. R. R. GTG: . Is / Was. 118. Eng & Tools. 5X5 Kickoff. AP 82. Incr Pullup. 5X5 Sback. KHI eng. Pull-up Test. Pullup Anal. stress visit. C-clamps. Schedule. BOEING PROPRIETARY ECCN 9E991 .

moira
Download Presentation

Schedule

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Responsible: B. Kearns Status Date: 9/7/12 Approved by: S. Przybelinski R R GTG: Is / Was 118 Eng & Tools 5X5 Kickoff AP 82 Incr Pullup 5X5 Sback KHI eng Pull-up Test Pullup Anal. stress visit C-clamps Schedule BOEING PROPRIETARY ECCN 9E991

  2. MILESTONE SCHEDULE

  3. CS260 door surround manipulator sketch Phase 1 Design reviews in process Unloads FAJ, provides transport and 6 axis manipulation. Also need c-clamp tools with load cells. Phase 2 KHI style door surround manipulator Provides manipulation, strong back, and pullup Simple manipulator + calibrated c-clamp Boeing Proprietary

  4. Door Surround Installation • Time required to shim PAX and BCD Assembly • Approximately 10 Hrs required to Measure and Shim the each Door Surround • Complex shimming surface is time consuming to obtain gap measurements and fabrication of shims • Rate Requirements • CS 260 cannot meet the 4 day requirements with current shimming requirements

  5. Locating Door Surround • Locating Door Surround Assembly • DS is located the barrel using 4 DA holes in the Ti edge frame. • Indentified in Red. ( ) • (10) Additional Holes pilot holes are drilled in the Ti edge frames • Indentified in Blue. ( ) • Using drill starts provided by PAR. Spacing is slightly larger then 1’ • 10 lbs springs are installed with Clecos at all locations. • Door Pull Up Plan • Spring Clamps will be used to apply increased force allowable. • Eliminates need to back drill pull up holes

  6. Gapping/ Shim Installation • Gap Measurements • Gap measurements are then taking using feeler gages. • Smoothness of barrel creates difficulty and complex shims • Shim Installation • DS is then removed from Barrel for Shim installation. • Door is then relocated using (4) DA holes. • Door Pull Up Plan • 5X5 requirement would simplify shim fabrication. Gaps Stringer Location Stringer Location

  7. Drilling of Door Surround • Re-Gapping Door Surround • Edge frames are re-gapped in drill areas before drilling plate index locations • Gaps change as more structure is added in the barrel and with barrel rotations. • Gaps change due to size and contour of parts and 10 pounds per foot is not sufficient to produce repeatable gaps • Engineering requirements – Gap must be within 0.008 before drilling. • Due to non-repeatable gaps Temp shims are then slid into place to fill new gaps before clamping to drill. • Indexing Drill Plate • Index holes (8) are drill by hand from drill starts in the skin provided by PAR. • (4) Drill plates are then located and pinned in location using these holes. • Drilling TI Edge Frames • Ti Edge frames are then drilled using Quackenbush drill motors • (10) locations per drill plate, total (40) holes per door surround. • Door Pull Up Plan • Application of increase pull up allowable would reduce gap variation. • Additional shims would not be required.

  8. Nonconformance’s Keel • NC Conditions shown for AC 80-85 • Most nonconformance’s are from delaminationand oversized holes during drilling process • Working with BR&T and ETC to address nonconformance’s • NC’s are created from gaps between the edge frame and Skin • (The Surface that is sanded by Fabrication) • (32) NC EPD created over 6 LNs • Door Pull Up Plan • Gaps during the drilling process is believed to be highest cause for damaged holes on the Ti Edge Frames. Crown Keel

  9. Conclusion • Required Changes • Establishing the 5X5 requirement on the DS mating surfaces. • Increasing the allowable pull up on the Ti edge frames. • Reduce the complexity of the shim fabrication • Reduce gap variation • These improvements will reduce installation time of the DS Assemblies by • Reducing the time associated with shimming. • Improve hole quality during drilling. • Reduce NC will reduce time • Estimated Time Savings is still being evaluated.

More Related