Once-Up / One-Pass Drilling Process, C-17 Cargo Ramp Skin Assembly The Boeing Company - Military Aircraft and Missile Systems

Format:

Conference/Event

Author/Creator:

Green, Craig B., author.

Conference Name:

Automated Fastening Conference & Exposition (1999-10-05 : Nashville, Tennessee, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

As an ongoing effort to achieve affordability goals and obtain additional aircraft orders, the C-17 program has developed and implemented a once-up / one-pass drilling process for the C-17 Cargo Ramp center skin to frame assembly operation. Traditionally, the aircraft assembly build process consists of the following steps: part assembly, multi-pass hole drilling, part disassembly, hole deburring, fay sealing, part re-assembly, and fastener installation. The once-up / one-pass drilling process reduces this sequence to: fay sealing, part assembly, one-pass hole drilling, and fastener installation. The new process will provide a significant recurring cost savings and cycle time reduction to the program by eliminating the labor and time-intensive efforts of disassembling, deburring, and re-assembling a skin panel 230 inches by 80 inches in size. This once-up / one-pass process has been achieved through a combination of assembly sequence changes, clamping method development, and drill motor / cutter system design

Notes:

Vendor supplied data

Publisher Number:

1999-01-3426

Access Restriction:

Restricted for use by site license