Keyword: Stamping

Briefs: Manufacturing & Prototyping

A technique of thermocompressive gold-to-gold diffusion bonding at relatively low temperature has been devised to provide stable, uniform, strong bonds between struc- tural...

Briefs: Manufacturing & Prototyping
Process for Rapid Prototyping in Ceramic-Matrix Composites

The ceramic-composite advanced tow- placement (CCATP) process is a means of laying down continuous-fiber-reinforced, ceramic-matrix composite (CMC) materials in patterned layers to form objects that could have complex three-dimensional shapes. The CCATP process is a member of the growing...

Briefs: Manufacturing & Prototyping
Process for Rapid Prototyping in Ceramic-Matrix Composites

The ceramic-composite advanced tow-placement (CCATP) process is a means of laying down continuous-fiber-reinforced, ceramic-matrix composite (CMC) materials in patterned layers to form objects that could have complex three-dimensional shapes. The CCATP process is a member of the growing...

Briefs: Mechanical & Fluid Systems

A mount has been devised to satisfy a requirement to suspend a highly precise, flat, circular, low-thermal-expansion glass mirror in a horizontal plane with its reflective side...

Briefs: Software
Software for Network Processing of

The Electronic Portable Information Collection (EPIC) computer program is a computer system that processes work authorization documents (WADs). The EPIC System, which is also known as the Portable Data Collection System, comprises a central data server and portable data terminals. The central data server acts...

Briefs: Electronics & Computers
Improvements in a Fast Transient-Voltage Recorder

Some improvements have been made in an instrument designed expressly for recording lightning-induced transient voltages on power and signal cables. The instrument as it existed prior to the improvements was described in "Fast Transient-Voltage Recorder" (KSC-11991), NASA Tech Briefs, Vol. 23,...

Briefs: Electronics & Computers

The Parallel Integrated Frame Synchronizer (PIFS) chip is one of three very-large-scale integrated (VLSI) circuits designed for ground processing of streams of telemetric data received from...

Briefs: Materials
Improved Fabrication of YBa2Cu3O7 —x Superconductors

An improved method of manufacturing high-temperature superconductors of general composition YBa2Cu3O7— x and various grain structures has been devised. This method involves mixing, pressing, and heating of Y2O3, CuO, and...

Briefs: Mechanical & Fluid Systems

The figure illustrates a chair-base mechanism with a bushing-mounted drag chain. The bushing-mount design provides for one end of the drag chain to be free to pivot; this provision makes it possible to wrap the...

Briefs: Electronics & Computers

Dryden Flight Research Center's Flight Loads Laboratory (FLL) was constructed in 1964 for use in performing combined mechanical and thermal tests of structural components and complete...

Briefs: Motion Control

PC-based control has become one of the fastest-growing automation solutions for the factory floor. Control engineers are quickly dropping their proprietary PLC boxes and replacing them with PC-based control...

Briefs: Motion Control

The linear motor was invented in the mid-nineteenth century, at much the same time as its brother, the rotating electric motor. Because the linear motor always has to effect a reversing movement -...

Briefs: Physical Sciences

A hand-held optoelectronic instrument has been designed to generate a quantitative indication of the loss of chlorophyll, and thus the level of stress, in plants. The instrument...