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2. Load punch into a standard or adjustable length style holder. Set the overall length (back of holder to face of punch) to the SHUT HEIGHT OF THE PRESS MINUS Sheet Thickness. After this is accomplished load into turret. When using Thick or Thin style The Quick-Set™ this is accomplished easily! For other tool styles or competitor tools, adjustment of the length of a form tool to the machines “Shut Height” will be done with shimming or whatever length adjustment is available to the tooling style or machine punch. Don’t place any shims under die unless their is a notation requesting shims are etched on die. Form dies are higher than a standard die. Lifter dies placed on either side of the form die assist in smoothly lifting up the sheet to the form dies height. 4. Perform a single stroke of the press and check the results. Some types of forms (those without positive stops, Half Shears, Extrusions, some Single Electrical Knock Outs, etc...), may be designed to allow sheet form height to be altered. To do this adjust length of form tool. To form higher, leaving form at machines Shut Height and adding shims under die is often best to prevent sheet distortion. Note: Never attempt to exceed the forming height which the tool was designed for. It is critical to the tools design, “F.H.=(form height)”, for which the tool was designed to perform under is etched on the tool.
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CE offers a punch designed to easily measure a machines shut height Punch or Guide-Unit that excepts a dowel pin (press fit) to slide into it’s face. Simply place this punch with pin extended in a holder and load into turret. Use with any new or un-sharpened die (Height:112=.605 114=1.125, Thick or Thin 1.187, etc...) having a width or diameter < 5/16 (8mm). Perform a single stoke of press. The dowel pin is pushed into the punch when it makes contact with the die face. Now remove the punch holder and measure your machines Shut Height.
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EXCLUSIVELY From C.E. TOOLING The QUICK-SET™ This patented tool length adjustment unit allows for set up of form tools length to as close as .0025” with only a lift and turn of the outer knurled collar. Tool length can’t change during use. A half to one hour set up time is now reduced to 5 minutes. Currently Offered for Thick & Thin Turrets. |
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Forming Overview: Use and Set Up When setting up a form tool in a punch machine press, close attention must be made in setting the exact depth the punch comes down forming and literally spanking the material tightly between the form punch and die. For positive stop forms, you will need to get the precise Shut Height of your press. |
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SET UP INSTRUCTIONS: 1. Inspect the material thickness to be punched. To prevent poor form quality or damage to the form tool, only use a tool for the sheet thickness which the tool was designed for. If critical to the tools design, “Mat-(material thickness)” will be etched on tool. If only a clearance is etched, tool most probably can be used for a range of thickness. |
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PROGRAMMING SUGGESTIONS • Form tools should be the last operation punched. • As a form die is higher than a standard die, try not to program the use of either station adjacent to the form. • With today’s fast CNC presses, it is helpful to program a pause or dwell after each hit from a form tool. This gives extra time for the sheet to be stripped off of the tool. Further, if available program a slow stroke speed. |
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TOOL MAINTENANCE• C.E. Tooling offers sharpening or refinishing of form tools at very low rates and usually 1-3 day turn around. Look to the form tools Use & Maintenance Sheet received with the form tools. This reference sheet will help with the understanding of the tools design, and if required, for sharpening or disassembly of a form tool. Form Tools are highly susceptible to gauling. Insist that operators use a sheet lubricant such as CLM50 (page __) to help lessen galling and improve cutting edge life. If you have any questions about sharpening a particular cutting edge of a form, with tool in hand, call our engineering department (702) 736-2958 for guidance. All specials have a S-number etched on the tools. This number will allow our tool engineers to pull all information about your tool and talk you through the process. |
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CE TOOLING |
