Heat Treatment of Precision Turned Parts

Heat treating a precision machined component is a controlled heating and cooling process that alters the physical properties of the metal to achieve a specific requirement.  In many cases, heat treatment is used to increase strength, hardness, and wear resistance. However, depending on the material and process involved, it [...]

NADCAP Certification and How It Applies to the Precision Machining Industry

NADCAP is an acronym for the National Aerospace and Defense Contractors Accreditation Program.  This accreditation is focused on setting quality standards for special processes like plating, heat treating and coatings.  This accreditation is intended for organizations doing business in the aerospace industry, where there is an extreme focus on [...]

Classes of Steel Commonly Used in Precision Machining

Steel is one of the most commonly used materials in CNC Swiss machining and CNC turning.  The main element of steel is iron (coming from iron ore) which is mined in over 50 countries around the world.  Currently most the world’s iron ore (over 75%) comes from Australia, Brazil, [...]

Measuring Surface Finishes on Precision Machined CNC Swiss Turned Components

Oil & Gas Industry Parts China produces turned metal components to meet a wide variety of surface finish requirements.  Some finishes are available “off the machine” and others will require additional finishing processes. The part geometry and the chosen material will affect the surface finish that may be attained during machining on a [...]

FAI (First Article Inspection) Reports for Precision Machining

Some Oil & Gas Industry Parts China customers will require a First Article Inspection Report with the shipment of their first order on a new part.  This report provides a detailed verification that all specified requirements on a customer print have been consistently met in production. Years ago, FAI reports were most likely [...]

Honing and Lapping Precision Turned Components

Approximately 30% of the components that Oil & Gas Industry Parts China manufactures for our clients require grinding after the machining process.  Standard grinding (both centerless and centered) produces a finer surface finish and/or more precise dimensions than can be achieved during the turning process on a CNC Swiss or CNC Turning Center. [...]

Turning Vs. Milling: What’s the Difference for Precision Machining?

We have run into this question with many of our clients.  They say something to the extent of, “Help me understand what is turning and what is milling, because to me it is all machining.”  CNC turning and milling are two types of precision machining, but exactly what is [...]

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