This research is to study the approach for producing the hard materials part by using tungsten carbide powder. The tungsten carbide powder derived from Tungsten scraps recycle processes which are Insert tools scraps the waste of metal removal process or derived from usage of machining on machine tools which are the production of metal powder by recovering cemented carbide to tungsten carbide powder and bring it to recycle. The first experiment of this research starts with the production of pure tungsten carbide powder in order to produce the hard metal part how to possibly produce the durable part or hard materials. Preparing tungsten carbide powder which pulverized and mixed with Cobalt co-binder less than 17% so that molding with the pressure 300 Mpa and sintering at 1430 degree Celsius to the cemented carbide part in Insert tools type rectangle SNMG standard 120408 for turning. The result is found that the Insert tools have hardness about 1385 HV and density 13.45 g/cm3 and then they are tested to machine specimens in AISI 1045 type. The developed Insert tools can be machining metal removal them as well as the imported Insert tools. It is concluded that the production of Insert tools by recycling of tungsten carbide is qualified as the imported Insert tools. In addition it is the new developed research in Thailand to be the approach for domestic cutting tools product instead of the imported cutting tools.

This study is meant to help develops better facilities for Tungsten Carbide powder production process. The 10 kg-capacity machine used was able to produce 85 -95.49 percent purity Tungsten carbide powder. When measured most of the particle sizes and distribution between 0.03-350.00 !lm. which are considered large sized. More than that those tungsten carbide particles are contaminated by other kinds of metal especially Cobalt binder. We have tried to improve the Tungsten Carbide manufacturing processes by combining more steps including ball milling drying and screening. After 24-hours ball milling process the result showed that we were able to produce smaller Tungsten Carbide paliicles sizing from 0.025 to 30.00 ~lm. The obtained particles are also rounder and with 99.50 percent purity. They are also easier to grade. The Tungsten Carbide manufacturing technology yet needs a further development to eventually produce the desired hard material.

This research examined the green packaging development from banana fiber for instant food products. The purposes of this study were (1) to construct approve and develop the sketch design (2) to develop banana fiber package prototypes that protect food products inside (3) to eliminate packaging environment problems prevent natural resource and save energy in package processing and (4) to design packaging for instant banana food products. Method and procedure of this study were divided into 2 categories: Part I Studying banana fiber properties data suitable for making packaging and Part II Studying consensus data to develop green packaging from banana fiber for instant food products using a questionnaire after testing packages such as stand-up pouch paper box paper cup and zip lock bag to survey the appropriateness and the suitability for practical green packaging for instant banana food products. The findings were as follows: (1) Satisfaction of every factors were good level and every packaging patterns conformed to the identity design in structural and graphical packaging. (2) As a result of studying structural packaging factors it indicated factors that had excellent satisfaction level in every packaging patterns were packaging with aesthetic and elegant ones identity packaging and souvenir packaging. The least satisfaction in every patterns were average in storage packaging because of its easier to biodegradation. (3) For studying graphical packaging factors it found that all of factors in every patterns had excellent satisfaction level such as identity brand alphabet and easier to recognize as follow.

The project of lotus pattern design on fabric for the textile product development was conducted for purpose of studying any method to design the lotus pattern on fabric which would lead to the development of any house decoration and surveying the consumer satisfaction with the fabric product printed with the lotus pattern In this regard five methods of the lotus pattem esign were used with four types of fabric i.e. cotton cloth sillk linen and mixed fabric. Thereinafter two of these methods were selected to produce five types of product and then the survey on the consumer satisfaction was conducted.

Development of food products from fresh water fish aimed to conduct food recipes and food processing consisted of fish sausage with hrebs fermented fish sausage Pla jor crispy crackers with herbs Namprik-Pla yor and transfer this knowledge and technology to the target community in Supanburee area. it found that most accepted recipe for fish flake glake gave the highest scores for color flavor taste and overall acceptance. the highest-preferable level by consumers for color flavortaste texture and overall acceptance was obtained from crispy crackers with herbs.These products were kept in the packaging at the ambient for six months and then taking samples every two months to analyze the physiochemical properties It was found that colors of both samples changed. a little bit.