34 -- ELECTRON BEAM WELDING/FABRICATION SYSTEM

Notice Date

June 4, 2001

Contracting Office

NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001

ZIP Code

23681-0001

Solicitation Number

1-057-RCE.1237

Response Due

June 12, 2001

Point of Contact

B. Terry Cobb, Contract Specialist, Phone (757) 864-2129, Fax (757) 864-6966, Email t.g.cobb@larc.nasa.gov -- Roberta I Hollifield, Contracting Officer, Phone (757) 864-2521, Fax (757) 864-6966, Email r.i.hollifield@larc.nasa.gov

E-Mail Address

B. Terry Cobb (t.g.cobb@larc.nasa.gov)

Description

THIS NOTICE CONSTITUTES AMENDMENT NO.ONE (1) TO THE COMBINED SYNOPSIS/RFQ FOR ELECTRON BEAM WELDING/FABRICATION SYSTEMS. Companies shall ACKNOWLEDGE all amendment(s) in their quote. This notice serves as the official amendment to subject synopsis/RFQ and a written amendment will not be issued. The purpose of this amendment is to answer questions on the solicitation. QUESTION: >1.2.1 Regarding the "overhangs" referenced in this paragraph. Are the overhangs included in the 84" by 30" by 60" envelope specified in Paragraph 2.2? If not, what are the dimensions of the largest required envelope? ANSWER: Overhangs are already included in this build envelope. QUESTION: >2.5.2 What is the intent of the reference to software conversions and how does is relate to CAD programs and the EB welder? ANSWER: This intention is to be able to take contoured parts, such as pieces of an airplane model, and be able to track the weld along a curved surface. The model will already be designed in a CAD program, so the ability to translate the curvature of a joint from the CAD program to the welder would be desired. An alternate method capable of tracking and achieving welds with contours in 3 axes (as will be demonstrated in the Acceptance Test in Section 3.1.5) may be proposed. QUESTION: >4.2/4.3 There has been difficulty in locating a wire feeder manufacturer with the capability of feeding the range of wire specified. Is there a specific vendor or choice of vendors known to be acceptable to NASA whose products might be adapted to the EB/vacuum environment or must a completely new design be created? ANSWER: There was no vendor in mind with these specifications. The range of wires specified is to allow for the ability to feed fine and heavy gage wires with the same feeder. If a commercially available wire feeder is able to come close to these specifications, describe the capabilities and noncompliances with the specifications. A custom designed and built wire feeder may also be proposed. QUESTION: >4.4 Contractor is not aware of manufacturer of such equipment. Does NASA have a recommendations of suppliers for this equipment? ANSWER: There was no vendor in mind with these specifications. A custom designed and built heated/cooled platen was anticipated. The due date for receipt of offers is not extended. Companies shall provide the information stated in the synopsis/RFQ posted on the NASA Acquisition Internet Service (NAIS) no later than June 12, 2001. Documents related to this procurement are available over the Internet and are in Microsoft Office 97 format and reside on the World Wide Web (WWW) server which may be accessed using a WWW browser application. The Internet site, or URL, for the NASA/LaRC Business Opportunities home page is http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=CL&pin=23

Web Link

Click here for the latest information about this notice (http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=23#1-057-RCE.1237)

Record

Loren Data Corp. 20010606/34SOL001.HTM (D-155 SN50N858)