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Lab 04: Intro into Soldering and PCB's
How to Make a Lap Joint
For the fourth week of lab, I learned how to properly use soldering equipment
and the safety and operation procedures while doing so. I also learned how to
solder lap joints while learning how to use the through-hole method on a PCB board.
For reference, soldering is when you use a low temp metal in order to fuse two wires
together that have a metallic surface.
Step 1: For the first step in this lab, I had to cut two wires then stripping the wire 1/2 inch. Both
ends of the stripped wire had to be stripped equally for the solder to work. After that I
had to use distilled water on a sponge to clean the soldering iron and made sure their
was no residue or debris on the solder iron tip
Step 2: For the next step of making the solder, I made sure that the two exposed wires
were twisted a certain amount (reason is because it reduces splinting of the wires and
makes it easier to fuse) Then I turned on the solder iron and with the metal alloy in hand, I
tinned the two exposed wires equally and made sure there were no exposed copper wire.
Step 3: After tinning both wires, I then made sure they were smooth and free of bumps and
debris before fusing the two wires together. I cleaned the soldering tip a few times before applying
the flux and alloy together(It’s Important to always clean this because it will make your solder cleaner
and free of burnt surfaces)
Step 4: After prepping both wires and solder, I held both wires together overlapping eachother and
made sure they were equally cut and tinned before fusing. I gently started pushing the metal alloy
with the solder gun, carefully making sure both wires were fused properly. Overall, the final product was a
smooth and clean solder of the two wires that had a rectangular metallic finish to it.
PCB Board Using Through Hole Method
Step 1: First I installed the resistor to the PCB board and made sure the two recieving ends went
through the PCB board and bent the metal ends into a sort of V shape to hold the resistor in place
Step 2: Then I aligned the resistor correctly on the PCB board and turned on the soldering iron gun
and prepared the metal alloy
Step 3: After preparing the solder, I gently started to fuse the metal alloy to the bottom surface of the
PCB board where the resistor ends connected to. I made sure that the shape of the two solders looked
like a volcano shape. (Reason why to look for a volcano shape in the solder is so you know the solder passed through the board and is a sucessful connection to the PCB board)
Step 4: Once you have soldered the bottom side of the reisistor ends to the PCB board, you
have to do the same to the top of the resistor.
Discussion and Conclusion
What I learned :
Conclusion :
Overall, this lab helped me better understand how to properly use soldering equipment and gain valuable experience in how to solder and the different types of solders. Using the lap joints and the through-hole method were crucial to understand so i may apply my solder skills electronically in the future
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