To increase the productivity of carpentry, it is important that the ax is properly prepared - this is clear to everyone. However, just a sharp ax will not make you a "leader of socialist competition".It should not just be sharp, but CORRECTly sharpened. We will figure out how to do this, and what is the correct sharpening of the ax for different purposes.
Angle of grinding and chamfer width of the ax
When preparing the ax to use, two points must be considered: the angle of incision and the width of the chamfer. The optimal angle of sharpening is chosen by everyone, based on personal experience. The fact is that the choice of the right angle depends on four main factors:
- First, from the tree species. It is clear that different wood has different "rigidity".
- Secondly, from the condition of this wood: it is dry or wet.
- Thirdly, on the nature of the work that will be performed with the help of an ax( chopping, hewing, etc.).
- And, finally, fourthly, from the steel grade from which the ax is made.
Therefore, you can give only "averaged" recommendations for the angle of sharpening. If you need to cut dry wood, then the angle should be made within 25 - 30 degrees. For cutting a freshly chopped tree, an angle of about 20 degrees is best. Just keep in mind that the smaller the angle, the faster the ax will become dull.
The chamfer width also affects the performance of the ax. However, it is changed very rarely. This is done by forging metal. Previously, such a method as "pulling the blade" was used. The worn ax was carried to the blacksmith, and he gave him a "second youth".Modern production does not "bother" itself with good forging. Therefore, folk savvy suggested another option. The ax is sharpened with a double "descent".The first angle is approximately 15 degrees, and the tip( the second angle) is grinded by the average value( 25 degrees).
How to sharpen an ax
The very process of sharpening requires the utmost attention. When using electric power, the process takes a little time, but the metal overheats, which does not have the best effect on the hardness of the cutting-knitting part of the ax. Therefore, the first thing to do is to take care to reduce the beat of the grinding wheel to a minimum. In the process of sharpening, one must constantly monitor the state of the surface of the circle and regularly "edit" it. Only in this case, you can sharpen the quality.
Much depends on how to hold the ax during sharpening. Its blade should be directed to meet the rotation, and the needles should be kept at an angle of 45 degrees. During grinding, you should smoothly move the ax along the surface of the "sharpener", achieving a thorough grinding of the chamfer. Do not forget about overheating. It is advisable to immerse the ax in water after each "passage" from edge to edge.
Finally the video is like NOT need to sharpen the ax:
