Saldatrice Inverter: Pinza sul (+) o sul (-)? Non sbagliare Polarità!

Welcome to Meccanicando! We're entering the world of MMA (coated electrode) welding. Many have asked me for clarification on how to properly configure an inverter machine like the Telwin Force, one of the most popular in our workshops and garages. In this video, we'll focus on the fundamental theory, the one that's often skipped in haste but which makes the real difference between a professional job and a mess! We'll see how to adjust the amps, how to read the AVS marking on an electrode (e.g., 6013), and we'll resolve the question once and for all: should the electrode holder be connected to the positive (+) or negative (-) pole? 🛠️ PRODUCTS AND TOOLS RECOMMENDED IN THIS VIDEO: ⚡ Telwin Force Inverter Welder (Case and Accessories) ➡️ https://amzn.to/3Rzzscw (As an Amazon Affiliate, I earn from qualifying purchases. The price stays the same for you, but you help the channel grow! Thanks for your support! Always Be Mechanic!) ⚙️ Key points of this video [MINUTES]: [00:01] - Introduction to MMA welding and presentation of the Telwin Force 165 [01:34] - What is inverter technology and its advantages over the old transformer [02:12] - Analysis of the front panel, ampere knob, and thermal protection LED [02:57] - How to read the "Bible": the technical data table and the Duty Cycle [04:00] - How to read Electrode abbreviations (AWS 6013 rutile) [5:45] - Connecting the cables: Forward Polarity vs. Reverse Polarity [6:29] - Forward Polarity (Clamp on negative -): when to use it and why [8:02] - Reverse Polarity (Clamp on positive +): basic 7018 electrodes and penetration [9:33] - The secret that many overlook: how to insert and tighten the ferrules [10:15] - How to adjust the amps by listening to the workpiece (Gluing vs. Splashing) [11:07] - Summary and ideal settings for starting with a 2.5 mm electrode [11:43] - Essential workshop safety tips (DIN 11 mask and gloves) If this video was helpful in understanding how to best set up your welder, please like, subscribe to the channel, and activate the bell! 💬 Let me know in the comments if you'd like to see a practical welding test to compare the real difference in the bead with the two polarities! #welding #telwin #inverter #polarity #workshop #mechanics #tutorial #electrode