# Appalachian Tool & Machine, Inc.

> AS9100D and ISO 9001:2015 precision machining and tooling in Swannanoa, North Carolina. This public knowledge library covers process selection, engineering drawings, geometric calculations, surface texture and inspection, with technical citations.

The drawing, contract and agreed inspection plan govern a job. Nominal geometry calculations do not assign design tolerances. Certificate 19578 is valid through June 7, 2027; the linked PDF is the evidence. The owner/brochure reports a Ø70-inch fleet turning envelope, but the machine supporting it is not established. The named VTL limits are smaller: Ikegai VT1100 51-inch swing and 45.3-inch maximum workpiece; Doosan VT900 39.4-inch swing and 35.4-inch turning diameter; Okuma & Howa 2SP-V80 39.37-inch swing and 31.5-inch cutting diameter. Never attribute 70-inch turning to these named machines. The Monarch 96-inch and Wacheon 80-inch figures are distances between centers, not diameters. All jobs need stock, workholding and tool-access review.

## Shop and evidence

- [Shop overview](https://appalachiantool.com/index.md): Organization and services.
- [Machining capabilities](https://appalachiantool.com/capabilities.md): Processes and qualified envelopes.
- [Equipment and dimensions](https://appalachiantool.com/equipment.md): Separate swing, cutting diameter, length and setup limits.
- [Contact and documents](https://appalachiantool.com/contact.md): Quote details, address, hours and current documents.
- [Current certificate](https://appalachiantool.com/assets/img/certificate.pdf): Certificate 19578; issued June 8, 2024; valid through June 7, 2027.

## Machining guides

- [Turning Capacity: Diameter, Swing and Part Length](https://appalachiantool.com/wiki/turning-capacity.md): Size a turning RFQ correctly: distinguish swing, cutting diameter, part length and workholding, with ATM's documented machine capacities.
- [Vertical Turning vs. Horizontal Boring: How to Choose](https://appalachiantool.com/wiki/vtl-vs-horizontal-boring.md): Compare vertical turning and horizontal boring by part geometry, workholding, bore access and datum relationships before requesting a quote.
- [Swiss Turning: Part Geometry, Support and Economics](https://appalachiantool.com/wiki/swiss-turning.md): Understand Swiss turning, guide-bushing support, live tooling and batch economics, plus the drawing and stock details a useful RFQ needs.
- [5-Axis vs. 3-Axis Machining: Setups and Tool Access](https://appalachiantool.com/wiki/5-axis-machining.md): Choose between 3-axis, indexed 3+2 and simultaneous 5-axis machining by geometry, tool access, setup needs and inspection requirements.
- [Machining Titanium, Inconel, 17-4 PH and Aluminum](https://appalachiantool.com/wiki/material-machinability.md): Compare material behavior without misleading scores. Learn which alloy, condition, heat-treatment and inspection details belong in a machining RFQ.
- [Geometry from Drawings: Coordinates, Angles and Tapers](https://appalachiantool.com/wiki/geometry-from-drawings.md): Calculate nominal bolt-circle coordinates, triangle dimensions and taper angles from a fully defined drawing without inventing tolerances.
- [AS9100D Explained for Machining Buyers](https://appalachiantool.com/wiki/as9100d-explained.md): Understand AS9100D certification, material traceability, first-article planning, and the evidence to request from a machining supplier.
- [GD&T and Drawing Tolerances for Machining](https://appalachiantool.com/wiki/gdt-tolerances.md): Prepare clear machining drawings with GD&T, datum references, explicit standards, and general tolerances that match the part's function.
- [Surface Finish Ra: Specify and Verify It](https://appalachiantool.com/wiki/surface-finish-ra.md): Understand Ra surface roughness, units, lay, filtering, and inspection conditions before choosing a machining or grinding finish.
- [CMM Inspection and First-Article Reports](https://appalachiantool.com/wiki/cmm-inspection.md): Plan CMM inspection around datums, sampling, measurement uncertainty, and reports that connect results to drawing requirements.
- [Specialty Tooling and Repair-Part Planning](https://appalachiantool.com/wiki/specialty-tooling.md): Prepare a useful RFQ for fixtures, specialty tooling, repair parts, and low-volume machining with clear interfaces and acceptance criteria.
- [Fully Constrained Sketches and Clear Drawings](https://appalachiantool.com/wiki/fully-defined-drawings.md): Separate fully constrained CAD sketches from complete manufacturing drawings, with clear tolerances, datum references, and an RFQ checklist.

## Feeds and structured index

- [Knowledge index](https://appalachiantool.com/knowledge.json): Guide URLs, source citations, related links and company evidence.
- [JSON Feed](https://appalachiantool.com/feed.json): Full guide content in JSON Feed 1.1.
- [RSS](https://appalachiantool.com/rss.xml): Full guide content in RSS 2.0.
- [Atom](https://appalachiantool.com/atom.xml): Full guide content in Atom 1.0.
- [All guide text](https://appalachiantool.com/llms-full.txt): One text file containing all cited guides.
- [Sitemap](https://appalachiantool.com/sitemap.xml): Canonical HTML pages.