Before Machining

Date: 4 September 2026

Prepare tooling, workholding and cutting data so that the component's protective thickness is not unintentionally altered.

• Cutting data are set per grade; a new grade is approached conservatively.
  Cutting data are set per grade; a new grade is approached conservatively.
• The tool matches the situation, for example solid carbide with internal coolant, or indexable insert drills only up to twice the hole depth.
  The tool matches the situation, for example solid carbide with internal coolant, or indexable insert drills only up to twice the hole depth.
• The overhang length is at most three times the tool diameter, and coolant is active.
  The overhang length is at most three times the tool diameter, and coolant is active.
• The workpiece is mechanically clamped; a magnetic chuck is not in use.
  The workpiece is mechanically clamped; a magnetic chuck is not in use.
• A metallic backing plate is in place, and feed is paused before breakthrough.
  A metallic backing plate is in place, and feed is paused before breakthrough.
• No thickness reduction takes place; a nominal thickness is not milled down to a lesser thickness over an area, unless a concession has been obtained beforehand.
  No thickness reduction takes place; a nominal thickness is not milled down to a lesser thickness over an area, unless a concession has been obtained beforehand.
• The first milling pass on flame-cut edges goes at least 2 millimetres deep.
  The first milling pass on flame-cut edges goes at least 2 millimetres deep.
• Drilling and threading parameters are set according to the applicable tables.
  Drilling and threading parameters are set according to the applicable tables.