What are the materials joining requirements for battery manufacturing?
There are a number of materials joining requirements for battery manufacturing, depending on the specific type, size and capacity of the battery. Internal terminal connections, battery can and fill plug sealing, tab to terminal connections, and external electrical connections are a few key examples.
What is a Welding Procedure Specification?
Welding Procedure Specification also qualifies the system. Otherwise, qualification of a system shall be per 6.2.2. Devices used to determine electrode force shall have a minimum accuracy of ±5%. All weldments shall be fabricated according to the requirements of this process specification.
What are the requirements for a weld test?
All weld specimens shall be visually inspected per 8.3 and tested for electrical conductivity (resistivity). The resistivity of each connection shall meet the drawing requirements or if not specified by the drawing, shall measure less than 1.0 Ω.
How many resistance welded spots are required?
As required, all engineering drawings shall specify the minimum number and maximum number of resistance welded spots required for each connection. In any case, there shall be no less than two weld spots per connection. Connections which will accommodate only one spot shall be avoided where possible.
Do weld tabs require heat input control?
Welding tabs or terminal connections to buss bars generally does not require as much penetration of heat input control as the tab to terminal welds. The materials, material thickness and combination of materials determine the best welding technique.
What is a Welding Procedure Specification (WPS)?
One copy of the WPS shall be maintained in the vicinity of the welding station and shall be readily accessible by the welders, inspectors, supervision, and/or engineering. A Welding Procedure Specification (WPS) is a qualified written working procedure that must be developed before beginning production for each unique weld type to be produced.
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Discussion & Message Board
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