GEARS MODEL FIGURE INVOLUT WELLMAN BY DIAN pramesti, S.Pd

IMAGES OF gears involut Wellman By calculation: Number of teeth (N) = 20 teeth press angle = 14.5 degrees

FIGURE 3 DIMENSIONAL gears involut Wellman

AUTO CAD TOOL IN THE FIELD OF WELDING BY MIND Maryanto, ST

Welding is to connect two pieces of metal by the hot melt material added. Welding is one way to get a connection permanen.Las also widely used in the manufacture of machines or structures that were previously made ​​by casting or forging. Welding is one of the few mechanical process that adds material to the workpiece. Welding symbols on engineering drawings provide clear instructions for welding expert in doing welding. Location of components in the welding shall be clearly identified by means of welding symbols. CAD libraries can simplify the process of drawing. To simplify how the placement of a complete welding information, a system of symbols has been developed by AWS welding (American Welding Society), published in 1947 under the title, "Standard Welding Symbols". This symbol was taken over by the ANSI (American National Standards Institute) and is now published as ANSI / AWS A.1.1 - 1989

Welding symbols picture for the location of elements of the standard welding A special diagram welding is an image pair consisting of a number of components that are combined together as one unit. Welding on the working drawings are not drawn, but it is shown by clear and complete welding symbols. Given the size of the component to provide the amount of information that will be used. Connections as indicated in shape before welding.

RUDENESS LEVEL SURFACE BY MIND Maryanto, ST

Surface roughness is basically a field experiencing workpiece machining process that aims to form a desired shape. For each workpiece machining experience will be undertaken with the engine operation will leave a mark certain roughness, such as smooth, rough, or shiny. Engine operation on the workpiece surface will determine the state of the surface at a certain level. For states in the field of surface roughness of the workpiece according to ISO 1302 - 1978, in conjunction with the stated level of surface roughness symbol of the letter N followed by a number of the most delicate to the number twelve of the most rugged. To determine the level of surface roughness on the working drawings are drawn with AUTO CAD or manual, it is necessary to consider the operation of the machine which used to form the workpiece. The table below stated levels of surface roughness is expressed with the symbol of the letter N followed by a number of the most delicate to the number twelve of the most rugged machine followed by surgery.

By reading the table it can be determined with a surface roughness levels accompanying engine operation. So that planners can determine the value of a product selling goods, both finished and semi-finished goods.

Surface roughness CONFIGURATION SYMBOL BY ISO 1302 - 1978 By Budi Maryanto , ST

A.  PURPOSE surface roughness CONFIGURATION SYMBOL BY ISO 1302-1978

The purpose of surface roughness symbol configuration according to ISO 1302 - 1978 in the working drawings, is to declare
1. the level of surface roughness, in states with a level surface with a 
    roughness value of N 1 to N 12
2. direction of former penggerjaan as a result of the production 
   process on the workpiece, denoted by the symbol towards the 
   former work
3. coating on the workpiece as the end result of a product that aims to
   increase the added value of an existing product, is expressed by writing the type of coating, or production processes used

Configuration of the surface roughness symbol

Given the configuration of the surface roughness symbol on the working drawings are forwarded to the production process can determine the selling price of a product, thus increasing the company's profit after the cost of doing the calculation on the entire production process.
  Giving Coat surface roughness configuration according to ISO 1302 - 1978 in the working drawings, can provide clear guidance directed, and coordinated well on the production process, at the time of the end of a product.

B. ROLE IN AUTO CAD surface roughness GIVING BY CONFIGURATION SYMBOL ISO 1302 - 1978

AUTO CAD program one of the program that is used for drawing techniques provide an important role in the provision symbol penyeleseian configuration problem of surface roughness.
By drawing the symbol configuration complete surface roughness as a whole, and then store it in the template in AUTO CAD Program, and call him back when we drew with AUTO CAD Program by:










1. click the INSERT
2. Click LAY OUT FORM TEMPLATE
3. Select the configuration Coat surface roughness in accordance with the working drawings.
This can save time when we draw with AUTO CAD.

Figure Conney Pulley By Budi Maryanto, ST

Conney working drawings Pulley

Conney Pulley 3-dimensional image, drawn with Inventory version 4

CHARACTER OF GEOMETRIC AND SYMBOLS By Dian Pramesti, S.Pd

  The table below presents the types of geometric character which can be controlled by the geometric tolerance symbols for use on drawings.

Geometric Tolerances Table image

In the geometric tolerance that show the diversity of shape, location, and position, often required other geometric elements in the same component as the basic element. Based on the basic elements of the relationship specified geometric tolerance, the tolerance of such a good, tolerance profile, orientation tolerance, where tolerance, and tolerance spinning.

WRITING TERMS OF TOLERANCE SYMBOLS ON IMAGES

To differentiate with other symbols, geometric tolerance symbols shown with the following conditions:

Working drawings hub , in Auto CAD drawings in attaching symbols and geometric tolerances

a. SQUARE GEOMETRIC TOLERANCE

Symbol of tolerance and requirements in writing at the geometric tolerance box is divided into two or more, the use of AUTO CAD program can help in making geometric tolerance box by way of:

1. Click on the tool bar Dimension AUTO CAD standards
2. Click on a sub section of Tolerance Dimension
3. In the Geometric Tolerance dialog box click on the symbol and its geometric tolerance of the desired geometric tolerances
4. Click OK and place the geometric tolerance symbol in AUTO CAD drawing work area

Hub in the 3 -dimensional images , drawn using the program Inventory version 4

b. APPOINTMENT OF ELEMENTS THAT GIVE IN GEOMETRIC TOLERANCE

Geometric tolerance box is connected with a given tolerance of geometric elements with lines pointing the tip of the arrow must be attached. use of AUTO CAD program can assist in the appointment of elements given by the geometric tolerances:

1. Click on the tool bar Dimension AUTO CAD standards
2. Click on a sub section of the Leader Dimension
3. After that place the appointment of geometric tolerances given element by clicking on a given field of geometric tolerance point for the geometric tolerance towards the box

Working drawings welding Tank Reservoir by Budi Maryanto, ST

Working drawings welding Tank Reservoir

Reservoir tank welding pieces image

Reservoir tank welding image