RF Gluing Setup Before using the RF gluing equipment, read the manufacturer’s manual. It contains informa- tion on what material types and thicknesses you can bond. Clamp your assembly together as described in Chapter 32. Be sure the metal clamps will not interfere with movement of the RF gun across the glue line. Touching the electrodes of the gun to the clamps could cause permanent damage to the RF equipment. After clamping, wipe off any excess adhesive. RF Gluing System Operation Always follow the manufacturer’s procedure when operating the RF equipment. Each machine has specific features that affect its use. If recom- mended cure times are not given, you can determine them for the piece you are gluing by creating test samples. Safety Note Keep your free hand at least one foot from the RF gun while using it. Moist skin near the gun could attract an arc from the gun similar to light- ning and result in a serious burn. Safety in Action Adhesive Safety Safety concerns associated with adhesives are identified on container labels. They inform you of toxic, skin-irritating, and flammable ingredients. When using adhesives, follow these precautions: • Wear safety eyewear to protect yourself from splashing adhesives and solvents. • Read all adhesive container labels and prod- uct instruction sheets. See Figure 31-27. • Apply toxic adhesives in a well-ventilated area. Forced air exhaust systems are best. • Extinguish all flames while using flammable adhesives and solvents. • Protect sensitive skin with rubber or plastic gloves. • If you experience any adverse symptoms while applying adhesive, contact your physi- cian immediately. • Touch only the handles of hot-glue or RF guns during use. RF Gluing Gun Operation Most RF gluing guns work as follows: 1. Glue and clamp your assembly. 2. Turn on the welder switch. 3. Keep your free hand at least 12″ (305 mm) from the gun electrodes. 4. Position the gun over the joint, one electrode on each side of the glue line. 5. Squeeze the trigger on the gun handle to begin the frequency curing. 6. The glue should heat and bubble from the glue line. Do not hold the trigger for more than 15 seconds per position. Longer times can dam- age the equipment. 7. Move to another position over the joint. 8. Repeat steps 5 through 7 at about 4″ (100 mm) intervals. 9. Remove clamps. Procedure Patrick A. Molzahn Figure 31-27. Read adhesive container labels for important information, such as flammability and toxicity. Chapter 31 Adhesives 567 Copyright Goodheart-Willcox Co., Inc. Objectives After studying this chapter, you should be able to: • Read wood grain to prevent chipping workpieces while surfacing. • Set up and operate a jointer. • Set up and operate a planer. • Explain the sequence of steps to square workpieces. • Maintain jointers and planers. Technical Terms chip breaker fence grain pattern honing infeed roller infeed table jointer jointer/planer knife marks per inch (KMPI) newton meter outfeed roller outfeed table planer pressure bar snipe table roller top dead center Wood faces, edges, and end grain are surfaced to produce flat and smooth cabinet parts. A high-qual- ity surface is obtained through the proper setup, operation, and maintenance of surfacing machinery. Practicing these skills will reduce the time you spend smoothing the product with abrasives or scrapers. The surfacing characteristics of various wood spe- cies are found in Chapter 15. Jointers and planers are the principle machines for surfacing. See Figure 25-1. Suppose you begin with rough-sawn stock. One face is surfaced with a jointer. The other face is surfaced with the planer. Moulders are common in industry to quickly con- vert rough stock to boards of finished dimensions. The process of jointing, followed by planing, brings stock to a desired thickness. The amount of surfacing needed depends on the material. Wood bought as S2S (surfaced two sides) may not need additional surfacing. Rough and warped stock will require more work. Patrick A. Molzahn Figure 25-1. A—Jointers are used to flatten stock and joint edges square. B—Planers create parallel faces. A B Copyright Goodheart-Willcox Co., Inc. 421 Surfacing with Stationary Machines CHAPTER 25 List of important technical terms introduced in the chapter. The terms in this list appear in bold-italic type when they first appear in the chapter. Technical Terms Remind students of safety rules to follow regarding specific tools, machines, or practices. Safety Notes Explains how to safely operate machines and tools used in various cabinetmaking processes. Safety in Action Present cabinetmaking processes in an easy-to-follow, step-by-step format. Procedures help promote a logical approach to common cabinetmaking processes. Procedures Provide an overview of the chapter content and explain what should be understood upon completion of the chapter. Objectives Using This Textbook Copyright Goodheart-Willcox Co., Inc. x