Frames are suited for defense applications that demand restrictive dimensional tolerance and precise metallurgical qualities
WARWICK, R.I.—Side wall frames for hybrid microelectronic circuit packages (www.atwall.com/atwall/tubing_sidewallframes.html) used in defense applications worldwide are available from A.T. Wall Company, the company announced recently. The tubular frames serve as sidewalls for hermetically sealed flat packs that demand restrictive dimensional tolerance and precise metallurgical qualities, according to A.T. Wall, a supplier of precision tubing (www.atwall.com/atwall/tubing.html) and fabricated metal components.
To manufacture the side wall frames, the company uses what it calls “a unique manufacturing process” that involves hydraulic press forming of nickel alloy plate circles into cups, followed by traditional tube annealing, cold drawing, and cutting to size. A.T. Wall claims that it is the only side wall frames manufacturer capable of producing Kovar® tubular frames through this process. The company also offers a number of secondary operations, including lap grinding and sidewall hole piercing.
A.T. Wall offers the side wall frames in a various materials—including nickel-iron alloys, carbon steel, stainless steel, and copper—and shapes, such as squares, rectangles, rounds, and custom shapes. The company manufactures the side wall frames with wall thicknesses from 0.010 inch to 0.25 inch, outside dimensions (length x width) from 0.062 inch x 0.032 inch to 4 inches x 2 inches, and heights from 0.025 inch to 2 inches.
A.T. Wall Company, part of the ATW Companies, is known for its production of seamless cold drawn precision tubing and metal stampings, including drawn and coined products. The company serves customers throughout the world in industries such as aerospace, electronics, telecommunications, and medical (see What’s the Secret Sauce for U.S. Manufacturing?).
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