408-8649 Datasheet, PDF (7/7 Pages) Tyco Electronics – This instruction sheet covers Die Packages used in PCB Singulation systems.

PCB Singulation Systems Die Packages
408-8649
6. REPAIR AND REPLACEMENT
6.1. Die Bushing or Perforator Replacement
If several die bushings, hold–downs, or perforators
are replaced with new ones, the new ones must be
ground to the same height as the existing ones.
If all the bushings and perforators are replaced:
1. All bottom and top hold–downs (if used) and all
transfer pins used with the solid stripper, must be
replaced and ground to the proper height.
2. The bottom hex rest pads, and pilot pin rest
pads must also be replaced and ground to the
bushing height. See Figure 14.
3. New stop block spacers will be required. Refer
to Paragraph 5.3,C for sharpening procedures.
NOTE
i
Note that the stop block spacers must be
sharpened so that the amount of material
removed from the stop block spacers equals the
amount of material removed from perforators and
the die bushings.
6.2. Replacement
Request replacement parts by calling PCB
Singulation Systems Customer Service at
1–888–782–3349.
7. FREQUENTLY ASKED QUESTIONS
Q. How many parts can be run before sharpening?
A. The number will vary depending on the type of
material and thickness. Normally it is between
30,000 and 50,000 machine cycles can be run
between sharpening. Singulated printed circuit
boards should be routinely inspected for signs of
tool wear and the die package should be inspected
after every 40 hours of constant usage.
Q. How much material can be sharpened off the die
bushings before replacement is required?
A. No more than 2.54 mm [.100 in.].
Q. How much material can be sharpened off the
perforators before replacement is required?
A. No more than 3.175 mm [.125 in.].
8. REVISION SUMMARY
Revisions to this instruction sheet include:
S Updated document to corporate requirements
S Changed name of systems
S Changed contact information in Section 5, Step
2 of Paragraph 5.3.A, and Paragraph 6.2
Pilot Pin
Rest Pad
Bottom Hex
Rest Pad
Rev A
Figure 14
Tyco Electronics Corporation
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