Feed Rate & Chip Load — Gray Cast Iron
Table feed vf = n·z·fz for milling Gray Cast Iron, preset with a handbook chip load per tooth.
Gray iron produces discontinuous, dusty chips, so feed is set by edge strength rather than chip evacuation. Honed (slightly dulled) edges actually outlast razor-sharp ones in this abrasive material.
Formula
Note: Catalog starting values only — always confirm against your tool maker's data sheet and cut a test part. Machine rigidity, coolant and workholding shift real-world numbers.
Table feed vf = n·z·fz for milling Gray Cast Iron, preset with a handbook chip load per tooth. A free cnc machining: speeds, feeds & tool wear tool — no sign-up, no upload, instant results in your browser.
About Feed Rate & Chip Load — Gray Cast Iron
Feed Rate & Chip Load — Gray Cast Iron computes the governing relationship vf = n·z·fz live as you type. Gray iron produces discontinuous, dusty chips, so feed is set by edge strength rather than chip evacuation. Honed (slightly dulled) edges actually outlast razor-sharp ones in this abrasive material. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Feed Rate & Chip Load — Gray Cast Iron
- 1Enter your values — Spindle speed n, Number of flutes z, Chip load fz (sensible defaults are pre-filled).
- 2Read the live results: Table feed, Feed per rev.
- 3Check the "with your numbers" line to see vf = n·z·fz substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Feed Rate & Chip Load — Gray Cast Iron?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula vf = n·z·fz with authoritative sources cited on the page (Sandvik Coromant — Milling formulas & definitions; Machinery's Handbook, 31st ed. — Speeds and Feeds)
- ✓Gray iron produces discontinuous, dusty chips, so feed is set by edge strength rather than chip evacuation.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the feed rate & chip load — gray cast iron use?+
It evaluates vf = n·z·fz, exactly as published. Sources: Sandvik Coromant — Milling formulas & definitions; Machinery's Handbook, 31st ed. — Speeds and Feeds. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Gray iron produces discontinuous, dusty chips, so feed is set by edge strength rather than chip evacuation. Catalog starting values only — always confirm against your tool maker's data sheet and cut a test part. Machine rigidity, coolant and workholding shift real-world numbers.
When is this calculator the right tool for the job?+
Table feed vf = n·z·fz for milling Gray Cast Iron, preset with a handbook chip load per tooth. A free cnc machining: speeds, feeds & tool wear tool. Honed (slightly dulled) edges actually outlast razor-sharp ones in this abrasive material. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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