Broken Tap Remover

The test results below were found to give end users an estimate of ‘worst case scenario’ drilling times and wear when drilling into a solid block. Testing was done using hot rolled steel with 2mm, 4mm, and 6mm electrodes. Driller Z depth was set to drill 15mm and stop. Part was submerged under 1 inch of water with no additional flow. As you will see in the 4mm tap burning test at the bottom, drilling times and wear are significantly better when burning on a tap or end mill where flushing conditions are improved. Adding water flow over the work piece and changing settings can also increase cutting performance from the base line tests shown below.

2.0mm Test: Z-Axis set to 15mm (.590”) – Solid Steel Block, Submerged

• Finished Hole Depth: .240”
• Time: 4:41
• Wear: 60%
• Settings: Low, 6s Arc Timer

4.0mm Test: Z-Axis set to 15mm (.590”) – Solid Steel Block, Submerged

• Finished Hole Depth: .335”
• Time: 9:06
• Wear: 43%
• Settings: Med, 6s Arc Timer

6.0mm Test: Z-Axis set to 15mm (.590”) – Solid Steel Block, Submerged

• Finished Hole Depth: .375”
• Time: 16:23
• Wear: 36%
• Settings: High, 6s Arc Timer

4.0mm Test: Z-Axis set to 15mm (.590”) – Hardened Steel ¼-20 tap, Submerged

• Finished Hole Depth: .435”
• Time: 4:40
• Wear: 26%
• Settings: Med, 6s Arc Timer

Based on the test results above, when compared to drilling into a solid block the drill time and wear were significantly reduced when drilling on a tap. The increased flush rate through the flutes of the tap greatly increased cutting performance on all sizes of electrodes.

DETAILS

DETAILS