Table of Contents

    • 115

    • Developing and Manufacturing Larger Diameter P110 Seamless Tube at TMK-IPSCO

      TMK-IPSCO expanded its seamless tube mill capability to make larger-diameter tube at its Ambridge plant. The new piercer tooling, mandrel mill pass and SRM pass have been developed for this hot mill capability expansion. This paper summarizes the development and manufacturing of the new seamless tube size.

    • 135

    • Fluid Lubrication and Insert Wear in the Thread Cutting of High-Strength Pipe Materials

      This paper will discuss the results of a study of the mechanisms of wear that occur during the thread cutting of API P110 and L80 pipe materials when lubricated using water-based metalworking fluids. This paper will also discuss the influence of insert wear on the quality of the thread surface produced. It was seen that the type of metalworking fluid used impacts not only the degree, but the predominant mechanism, of wear that occurs during the operation.

    • 142

    • Q-Robot ROLL: Vision-Based Automatic Deburring Robot for Cold Billets

      This paper discusses a novel approach to automated deburring of bars using 3D stereo vision and machine learning techniques. Discussion will include the issues of positioning accuracy, extraction of the bar profile to be deburred, calibrating the machine vision system, as well as preliminary field results.

    • 149

    • ArcSave®: Innovative Solution for Higher Productivity and Lower Cost in the EAF

      This paper was the 2016 AIST Charles W. Briggs Award winner. This paper summarizes the investigation results obtained from the first ArcSave® system installed in a 90-ton eccentric bottom tapping electric arc furnace at Steel Dynamics Inc. The hot test results show faster scrap melting rate, lower slag superheat during arcing, more homogenous melt bath, higher decarburization rate, reduced tapping temperature and tapping oxygen. The lower energy consumption, short tap-to-tap time, and consistent furnace operation greatly increase the productivity and operation safety.

    • 156

    • Tundish Flow Regulation With Advanced Refractory Designs

      Achieving high-surface-quality steel in the continuous casting process requires optimal mold level control. With the aid of computational fluid dynamics and physical water models, the geometry of the tundish gate has been optimized to improve overall mold flow stability. The new design encompasses an offset in the tundish well nozzle that realigns the flow and reduces the bias flow that is common in tundish gate regulation.