MODULE 06

ðŸĪ– Tech Assistant

AI-powered machining assistant — speeds, feeds, material data and process guidance.

AI in the Machine Shop

The Tech Assistant module applies AI language models to machining knowledge — acting as a senior process engineer available at any moment. Ask it to recommend cutting parameters for a specific material, explain a surface finish problem, suggest tool grades, or decode a G-code alarm. It reasons from the same engineering principles covered in the other modules but responds in plain language, interactively.

AI assistants do not replace machinist experience — they accelerate it. The value is in instant recall of reference data (speeds, feeds, ISO codes, GD&T rules) and the ability to reason through unfamiliar combinations of material, operation, and machine.

What to Ask

Parameter Lookup

"What cutting speed should I use for 316 stainless with a TiAlN coated carbide end mill?"

Troubleshooting

"My surface finish is poor on aluminum — chatter marks at high RPM. What should I change?"

GD&T Interpretation

"Explain the difference between true position and concentricity for a bore feature."

G-Code Help

"Write a G-code canned cycle for drilling 8 holes on a bolt circle of 80 mm diameter."

Material Properties

"Compare machinability of 6061-T6 aluminum vs 7075-T6 — which machines better and why?"

Process Selection

"For a hardened D2 tool steel cavity, should I use hard milling or EDM?"

Under the Hood

The assistant is built on a large language model (LLM) with a system prompt that anchors it to machining and manufacturing engineering. The model has been trained on vast technical literature — handbooks, ISO standards, cutting tool catalogs, academic papers — and can synthesize that knowledge into specific, actionable recommendations.

A well-structured prompt gets a better answer. Include: material (alloy and condition), operation (roughing/finishing), machine (power, rigidity, spindle max), tool (type, diameter, flutes, coating), and the specific problem or goal.

Good prompt structure:

Material : Inconel 718, solution annealed
Operation : Finish turning, external diameter
Machine : CNC lathe, 15 kW, 4000 RPM max
Insert : CNMG 120408, CBN grade
Goal : Ra < 0.8 Ξm, maximize tool life

Question : Recommend Vc, f, ap and coolant strategy.

What to Watch For

AI models can hallucinate — produce confident-sounding but incorrect numbers. Always cross-check critical parameters (especially for expensive materials or tight tolerances) against the tool manufacturer's cutting data tables or a machining handbook. Treat AI recommendations as a starting point, not a final program.

The assistant excels at qualitative reasoning, explaining concepts, and navigating trade-offs. For exact insert grades by brand, catalog numbers, or machine-specific G-code dialects, verify against official documentation.

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