Basics

CAD/CAM 1 Jul 1999

Understanding NURBS Interpolation

The right way to program curves? A solution to yesterday's problems? The truth is probably somewhere in between.

Basics 1 Jun 1999

Never Forget The Basics

We spend a lot of time in this column discussing sophisticated gages and out-of-the-ordinary applications—so much so, that perhaps we've lately been neglecting the basics. After all, the fanciest electronics, computers and software won't deliver accurate results if good gaging practice is absent.

Basics 15 Mar 1999

Surface Finish: A Machinist's Tool. A Design Necessity.

Simple "roughness" measurements remain useful in the increasingly stringent world of surface finish specifications. Here's a look at why surface measurement is important and how to use sophisticated portable gages to perform inspections on the shop floor.

Five-Axis 1 Mar 1999

Four Types Of Five-Axis Machining Centers

Different machines offer different approaches to rotary travel, and each design has its own strengths. Here's how they compare.

Basics 15 Feb 1999

Why We Couldn't Live Without EDM

A shop discusses some of the ways that EDM solves problems and creates opportunities in parts manufacturing. Wire EDM, ram EDM, and small-hole EDM all play a key role.

Basics 15 Nov 1998

Four Toolholder Quality Factors

Toolholders are a critical link between the machine tool and the workpiece. This article looks at four fundamental toolholder manufacturing parameters that precision metalcutting shops need to consider when tooling for a job.

Holemaking 15 Sep 1998

Are You Turning Fast Enough?

Let's face it. When most shops go looking for process improvements, turning is seldom at the top of the list. Sure, many shops these days are doing fine work in such areas as reducing lathe setup, combining milling and turning operations on a single machine, and automating workpiece handling functions. But for all the talk of high speed machining and other milling and drilling process improvements, precious little of that kind of thinking is being applied to the turning process itself.