CHAPTER 6 SOLDERING, BRAZING, BRAZE WELDING, AND WEARFACING

The information presented in chapter 5 covered the joining of metal parts by the process of fusion welding. In this chapter, procedures that do not require fusion are addressed. These procedures are as follows: soldering, brazing, braze welding, and wearfacing. These procedures allow the joining of dissimilar metals and produce high-strength joints. Additionally, they have the important advantages of not affecting the heat treatment or warping the original metal as much as conventional welding.

SOLDERING

Soldering is a method of using a filler metal (commonly known as solder) for joining two metals without heating them to their melting points. Soldering is valuable to the Steelworker because it is a simple and fast means for joining sheet metal, making electrical connections, and sealing seams against leakage. Additionally, it is used to join iron, nickel, lead, tin, copper, zinc, aluminum, and many other alloys.

Soldering is not classified as a welding or brazing process, because the melting temperature of solder is below 800F. Welding and brazing usually take place above 800F. The one exception is lead welding that occurs at 621F. Do not confuse the process of SILVER SOLDERING with soldering, for this process is actually a form of brazing, because the temperature used is above 800F.

This chapter describes the following: equipment and materials required for soldering, the basic methods used to make soldered joints, and the special techniques required to solder aluminum alloys.

Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing