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| Dadson 1-1/2” Diameter
x42” long
Gun Drill Machine
Dadson 1-1/2” Diameter x42” long Gun Drill Machine
Typical fixturing application of a
gun-drilled shaft (in this case an axle) Our
DS-1242-DL Dadson Gun Drill machine with a 1-1/2” X
42” capacity is available for projects requiring deep hole
drilling
in round stock. We routinely drill holes in the 9/16 to 1-1/4
range thru 4340-alloy steel, primarily to reduce rotating shaft
weight.
This process creates an extremely accurate size and finish control.Round
stock can be Gun Drilled with work pieces being up to 42” long. When drilling holes up to 1-1/8”diameter
length, a whip
guide is required and reduces the maximum length to 39”.
In all cases, the work piece must be drilled as the first machining
operation, and subsequent machining operations should be trued
from the gun drilled hole. A gun-drilled hole on this type of
machine is very straight, but does not necessarily follow a path
concentric with the stock outside diameter.
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DEEP HOLE HONING Subsequent honing operations
(if required) can be performed on our Sunnen ST-2000 tube honing machine.
This machine has a 78”
stroke capacity and can accommodate work pieces with diameters
up to 12”.
Typically, a gun-drilled bore has a very good finish. Depending on
the surface finish requirements, an optional honing operation can
be added after drilling. Ocassionaly, tool marks can be
left in the bore and require a honing process to Sunnen ST-
remove these imperfections. 2000 Hone TYPICAL GUN DRILLED PARTS
ALUMINUM HOLLOW BAR
PRODUCED FROM 2-3/4
GUN DRILLED AXLE FORGING
4340 1” DIA. 33” LONG
GUN DRILLED PANTERA
REPLACEMENT AXLE
9/16” GUN DRILLED HOLE
7075 ALUMINUM 1-1/4 HOLE 34” LONG
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