Collapsible Core Design & Assembly Guide - DME
Collapsible Core Design & Assembly Guide - DME
Collapsible Core Design & Assembly Guide - DME
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CC 352 P.C. <strong>Core</strong> Dimensions<br />
.590<br />
MIN<br />
Ø2.63<br />
Ø1.88<br />
3 °<br />
.068 MIN COLLAPSE<br />
AT FACE<br />
5 ° MIN DRAFT<br />
PER SIDE<br />
.030 FLAT MIN<br />
(NOTE 7)<br />
R.008 MIN<br />
(NOTE 1)<br />
.030 FLAT<br />
.020 MIN<br />
.075 MAX<br />
60° C’SINK<br />
BOTH ENDS<br />
FOR GRINDING<br />
Ø1.740<br />
MIN<br />
STK<br />
<strong>DME</strong><br />
<strong>Collapsible</strong> <strong>Core</strong><br />
Ø1.100<br />
Ø1.110<br />
.13 MIN<br />
.31<br />
NOM<br />
CENTER PIN<br />
COLLAPSIBLE CORE<br />
CENTER SCREWS ON<br />
MIDDLE OF LARGE<br />
SEGMENT<br />
R.03<br />
1.225<br />
1.400<br />
1.225<br />
(CIRCULAR STEP DETAIL)<br />
.030 MIN CLEARANCE REF.<br />
.030 MIN CLEARANCE<br />
.150 MIN/.250 MAX SHUT-OFF HEIGHT<br />
DO NOT USE TAPERED SHUT-OFF<br />
1.50<br />
MAX<br />
DO NOT<br />
EXCEED<br />
www.dme.net<br />
PARTIAL MOLD<br />
ASSEMBLY DETAIL<br />
6.065<br />
Ø2.500<br />
NOM<br />
±.003<br />
3.570 NOM<br />
Ø2.677<br />
NOM<br />
.710 REF<br />
.188 NOM<br />
P.C. SLEEVE<br />
±.001<br />
Ø1.811<br />
P.C. SLEEVE<br />
15 °<br />
.010<br />
COLLAPSIBLE CORE<br />
CENTER PIN<br />
±.005<br />
1.000<br />
(NOTE 4)<br />
HEAD<br />
SPACE<br />
±.001<br />
.249<br />
±.001<br />
Ø1.186<br />
Ø1.500<br />
Ø2.000<br />
+.000<br />
-.010<br />
SET-UP FOR GRINDING<br />
REFER TO GRINDING INFORMATION<br />
USE SCREWS TO<br />
ALIGN CORE ON PIN<br />
+.000<br />
-.010<br />
.56<br />
MIN<br />
±.005<br />
1.000<br />
(NOTE 4) HEAD<br />
SPACE<br />
STRIPPER INSERT<br />
.010<br />
Ø.63 DIA<br />
COOLING HOLE<br />
INDICATE HERE FOR<br />
GRINDING .003 MAX T.I.R.<br />
NOTES:<br />
1. Center pin to project .020 minimum/.075 maximum above front face of <strong>Collapsible</strong> <strong>Core</strong> with .008 R minimum at corners. See suggested partial mold<br />
assembly view.<br />
2. Both ends of center pin to be cut off after grinding contour on <strong>Collapsible</strong> <strong>Core</strong> before assembly in mold.<br />
3. Minimum suggested I.D. of thread or undercut is 1.270-S to give minimum steel support between depth of undercut and center pin.<br />
4. The 1.000 ±.005 dimension must be held in mold assembly and core grinding.<br />
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