David Immerman is a senior research analyst for PTC, providing thought leadership and market research on industrial technologies, trends, markets, and other topics. Previously Immerman was an industry ...

Therefore, in the given example, a single screw machine is being described that has a screw diameter of 60 mm and a length of 24 (i.e., a L/D ratio of 24/1). Machine Construction. Figure 1 shows a cut ...