#Form tapping bridgeport plus

#Form tapping bridgeport plus

(DEPTH = 30% of the diameter of the tool plus the thickness of the material)Īdd in time for potentially dull tooling, etc.Īdd in time for less than adequate machine thrust, etc. MINUTES multiplied by 60 = SECONDS it takes for the process. Generally, this is the calculation we use to figure out the time it will take to perform a process: We can help you lower your cycle time when drilling holes in a part or multiple parts. (watch those clearance, rake and lip angles as well as rough surfaces, etc.) Tools that were manufactured or sharpened incorrectly.Too deep of a cut without proper chip removal – Chip packing (try peck drilling, air blast or coolant through the tool options, etc.).The tool is not rigid enough (try drill bushings or guides, guide rods on the drilling machine, etc.).Inadequate coolant or lubricant (at the tip of the tooling).Inadequate coolant or lubricant (overall for chip removal, rubbing, etc.).Hard spots in the material such as scale, silica, etc.Improper cutting tool type or material (HSS vs TiN vs Carbide, etc.).

Note that excessive tool wear or breakage is often caused by one of the following: Check with tap your tooling manufacturer for specific requirements and limits. We suggests a minimum of 2-3 times the horsepower of drilling for standard tapping processes and higher numbers for flow or roll form tapping. Tapping generally runs at around 1/3 to 1/4 the RPM of drilling. Check with your reamer tool manufacturer for specific requirements and limits. The last thing you want is to stall your machine or motor. AutoDrill suggests the same horsepower rating in case the hole is undersized, etc. Reaming generally runs at 2/3 or less the RPM of drilling. It is often helpful to take a heavier cut in stainless than a lighter one to keep the tip of the tool in “cool” material rather than near the surface that was recently heated up by the last pass of the tool tip. In stainless, the RPM rate must be decreased significantly more as stainless steel does not dissipate heat easily and will almost immediately ruin the tip of your tool. In most metals, the RPM rate can be decreased to 25% of what is shown above. The process of drilling holes in metal or similar materials without coolant is possible but not suggested. For instance, many people drill 1/16″ holes at less than 10,000 RPM with no problems. If the chart above specifies a higher RPM than your machine is capable of, it should not cause a problem to run at a lower RPM. A typical drill press often has an RPM limitation of between 2000-3600 RPM.