July, 2016
www.us-
tech.com
Page 59 Soldering for Aerospace’s Harsh Environment Continued from page 57
dering designs are required. Solder joint design should account for conditions that include landing pattern, component geometry, material, and desirable thermal capacity. Automation of these soldering conditions
requires translating them into robotic operat- ing commands and programming, which takes specific expertise. Automated soldering processes include adjusting a heat source, feeding the solder, and providing controlled heat.
Japan Unix holds numerous patents for
robotic soldering, and has contributed to the development of the process. The company has also worked to improve the processes of solder feed and calibration.
Laser Shapes for Different Components
The company has created what
it calls “multi-phi” laser soldering technology. In conventional laser sol- dering, the irradiation diameter is fixed. With a multi-phi laser, its diameter is automatically changed to match the component shapes and land patterns. If the irradiation diameter is
fixed on a substrate where large and small components are placed, the diameter will be adjusted to the smallest one, but the heating capaci- ty will then become insufficient for the largest components. As a result, the irradiation time must be longer, and that will impact production effi- ciency and quality. Automatically changing the
diameter at any time can provide optimal soldering conditions for each component. When contact soldering, the
most suitable iron tip is selected for soldering each component. Equiv - alent changes are accomplished by changing laser diameter or shape. And even beyond its variable-diame- ter lasers, the company can provide variant laser shapes that include ring, square or oval. In 2015, Japan Unix estab-
lished a partnership with IPC, which is supporting its expansion in Japan. In the 1980s, MIL standards were transferred to IPC, and since then they have been updated and man- aged as IPC-J-STD. Top global organizations in -
cluding NASA, BAE Systems, Boe - ing, Airbus and GE together de velop and adopt IPC standards. IPC fully recognizes J-STD-001 as a globally- accepted soldering standard, and it has been adopted by electronics com- panies worldwide. The soldering quality required
by the aerospace industry has crite- ria that differ from the requirements of other segments. Therefore, IPC has established a J-STD-001(S) as a special standard that defines addi- tional aerospace-specific require- ments.
Soldering Lab and School The company also organizes a
lab to scientifically analyze soldering and operates a school to educate technicians. The latest assemblies are brought to the lab from all over the world to be tested and analyzed with soldering robots. If there is even one soldering
mistake, the entire product becomes defective. It cannot serve in a safety- critical function in aerospace equip- ment, especially when the defect will
VisionX-Series Convection Soldering
For more information visit or call + 1 770 442 8913
Automated soldering allows repeatable
component assembly for applications such as aircraft control equipment.
directly influence human lives. Japan Unix has been gaining results and
data from soldering robots and automation experience for decades. This experience applies most directly to
the automotive sector, but has been adapted to other industries, such as the medical and aerospace industries. The company also has significant experi-
ence in aviation and space where it has long standing partnerships with ITAR-compliant distributors, such as Fancort Industries in North America. Contact: Japan Unix Co., Ltd., 107-0052
Tokyo Minatoku, Akasaka 2-21-25 % +81-3-3588-0551 E-mail:
yusaku@japanunix.com Web:
www.japanunix.com r
with the VisionX-Series
energy balance
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