PWB Production Assembly Cost Guidelines.

Work is continuing on the preparation of the PWB Production Assembly Cost Guidelines Manual to provide guidelines to enable users to select and evaluate manual and automatic assembly methods. The section on assembly techniques has been completed. This includes description of assembly procedures, manual working to drawings, to visual aids, and manual to programmed assembly equipment, NCI. Also included are computerNC tape controlled machines used separately and as part of a machine assembly system. Equipment specifications have been formulated, two of which are included in this Quarterly Report. Also, standard performance time tables have been expanded and put into final form. Assembly cost analysis, though completed and reported in the first quaterly report, has been further simplified as part of the cost forms section. Improved forms have been included because of their close relationship with this section for review and comment. Design for automation analysis, not previously reported, is included in its entirety in its near completed state to permit a comprehensive overview. Design for automation is presented in network format from original circuit design and component selection to basic board artwork, to packaging, and to final assembly.