What we know, written to be used.
Guides on CNC machining, wire EDM, special alloys and sourcing machined parts from Mexico. No filler: information an engineer or a buyer can apply before requesting a quote.
The RFQ That Comes Back Right the First Time
A quote that takes two weeks and comes back wrong usually started as an RFQ missing two lines. Both of them take about a minute to add.
Read article →Supplier Qualification: The Documents Buyers Ask For
Most shops can make the part. Far fewer can produce the paperwork that proves they made it right, and that is usually where a supplier gets dropped.
Read article →Inconel 718 and the Alloys That Destroy Cutting Tools
The most expensive carbide insert on the shelf wears out in hours against Inconel 718. That is not bad luck. It is the physics of the material.
Read article →Machining Hardened Steel at HRC 60-65: What Works
Your part goes to HRC 62 so it survives wear in service. That sounds simple until it reaches the shop, where the same hardness fights back.
Read article →D2 vs H13: Picking Tool Steel for Dies and Molds
D2 and H13 are the two most requested tool steels for dies and molds. Choosing wrong does not show on the print. It shows months later, in production.
Read article →Surface Finish Ra: The Number That Quietly Doubles Cost
Asking for a mirror finish across a whole drawing is like asking for tight tolerances on every dimension. You pay for it, and almost nobody ever notices.
Read article →CNC Machining Tolerances: What to Specify and What to Leave Alone
A print where every dimension carries the same tight callout does not produce a better part. It produces a quote three times higher than it needed to be.
Read article →0.13 mm Wire EDM: When Sharp Internal Corners Decide the Part
An internal corner radius equals about half the wire diameter. Why most shops can't cut below R0.09 mm, and when 0.13 mm wire EDM is the only way to make the part.
Read article →Nearshoring Machined Parts to Mexico: A Sourcing Guide
A practical guide for US buyers sourcing CNC machined parts from Mexico: real cost math, USMCA, lead times, and the 7 questions that separate good shops from cheap ones.
Read article →Aerospace Machining in Mexico: Why the Querétaro Cluster Matters
Mexico is the world's 4th aerospace exporter, and Querétaro concentrates 80+ companies of that boom. What it means for sourcing machined parts in the Bajío.
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