CTE
Resources
Curated machining knowledge, tools, and pathways — organized by purpose.
MFGAxis — Buyer’s Guide
Company listings, capabilities, certifications, and specialties — organized for buyers and engineers.
Machining References
Curated technical references for machinists and engineers.
Machining Calculators
Feeds, speeds, formulas, and shop calculators.
Wire
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Hypertherm
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Roll
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Molybdenum
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Vericut
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Siemens
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Fanuc
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Turnkey
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Super
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Robotmaster
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Pronest
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Online
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Tap
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Optical
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Machinist
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Broaching
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Fatigue
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Photo
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Makino
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Erp
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Countersink
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Centerless
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Dual
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Okuma
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Acme
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Tapping
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Raw
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Moving
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Formula
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Ceramic
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Case Hardening
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Insert Geometry
Insert identification, lead angle, indexable insert geometry, and selection references.
Boring
Boring heads, U-axis systems, contour boring, and setup references.
Cutting Forces
Cutting-force formulas, machining power, chip load, and speed/feed references.
Workholding
Workholding strategy, zero-point clamping, fixturing, and setup efficiency.
Threading
Threading calculators, tapping guidance, thread milling, and related tooling.
Authors
Browse CTE contributors and subject-matter experts.
Glossary
Definitions of machining and manufacturing terms.
Machining Fundamentals & Tooling References
Core explainers and shop-floor references for speeds, feeds, forces, insert identification, heat treatment, and cutter geometry.
Process Spotlights & Manufacturing Systems
Inspection, automation, digitalization, and application-specific reads that complement the core machining references above.
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Keep exploring
Latest articles, videos, products, and news from across CTE that fit the same machining-learning path.
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A Break in the Action
The author offers tips about making interrupted cuts while turning. He also discusses the differences between interrupted cuts in turning and milling and various types of materials.
Counting Dollars: Supply Chain & Logistics
Salaries earned by metalworking professionals, including machinists, production engineers, manufacturing engineers and corporate managers. Salaries are broken down by region, size of company and type of shop or manufacturing facility.
Silver Lining: Safety, Standards & Compliance
GE Superabrasives' silver-coated diamond crystal is designed for grinding tungsten carbide. Discussed are the benefits--reduced friction, greater crystal retention and a cooler grinding environment--and how to apply wheels made from the crystal.
Holding On: Drilling Performance
Discussion of different types of toolholders for lathes, including collets, drill chucks, bushings and keyless chucks. Author discusses best holder for different applications, based on his experiences.
Ceramics Take a Turn: Turning Performance
Author describes applications for the two basic types of ceramic turning inserts–alumina and silicon nitride–as well as the types of parts and materials users have turned with them. Specifics about speeds, feeds and DOCs are given.
Hands Free: Turning Performance
Shop owners who operate multitask machines talk about the time and cost benefits of producing parts in a single chucking. They also discuss some of the problems they had when adopting the technology. Accompanying Articles focus on a multitask users group and machine that hard-turns and grinds.
Size Matters
The trend toward developing finer and finer carbide grains continues. The author looks at recent developments in the production of nanosized tungsten-carbide grains, which are smaller than 0.2 microns in diameter. Though not used widely at present for the production of cutting tools, some predict that will change as the technology evolves.
Killing Time: Drilling Performance
One company instituted a comprehensive plan for reducing setup times and saw its average setup time drop from 252 minutes to 39 minutes. The plan involves everything from standardizing tooling to consolidating raw materials to creating families of parts. The author outlines a step-by-step program that readers can apply to their metalworking setup operations.
Double Header
The author discusses the advantages and proper application of twin-cutter boring tools. They're recommended for rough-boring applications on castings, forgings and other jobs requiring a tool that can bore a cored hole. Details are provided on the three basic types of methods for rough boring with a twin cutter: balanced, stepped and full profile.
Tool Men
Establishing a good relationship with your cutting tool salesperson can benefit your operation. A good salesperson can help solve problems you don't have time to tackle and offer recommendations for machining difficult parts. The author also addresses what to do when a relationship sours.
Talking Points: Industry Trends & Analysis
A conversation with Lee Iacocca, chief spokesman and a member of the board of directors of The Online Asset Exchange (onlineassetexchange.com), a service for buyers and sellers of machine tools. Iacocca also is involved with a company that produces electric bicycles.
Back to Basics: Drilling Performance
Gundrilling: going deep